Buy vs Rent: We recommend you Buy
This compares the total cost of owning the book (cheapest buy price minus the best sell-back offer today) with the cheapest rental.
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Disclaimer: These calculations are based on the current advertised price. Your results will vary depending on several factors, including the condition of the book and the advertised price at the time of sale.
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus (Marketplace) Used (Marketplace) |
Used (Marketplace) |
$2.51 as of Oct 20, 2026, 7:35 AM ET |
$3.97 |
62% off
$6.48Buy Nowclick here! |
||
| RedShelf eTextbook (RedShelf) |
eTextbook (RedShelf) |
$12.43 as of Oct 20, 2026, 7:35 AM ET |
FREE |
27% off
$12.43Buy Nowclick here! |
||
| eCampus Short Term Rental (60 days, due 12/19/2026) |
Short Term Rental (60 days, due 12/19/2026) |
$12.20 as of Oct 20, 2026, 7:35 AM ET |
$3.97 |
5% off
$16.17Rent Nowclick here! |
||
| eCampus Quarter Rental (59 days, due 12/18/2026) |
Quarter Rental (59 days, due 12/18/2026) |
$12.88 as of Oct 20, 2026, 7:35 AM ET |
$3.97 |
1% off
$16.85Rent Nowclick here! |
||
| eCampus Semester Rental (76 days, due 01/04/2027) |
Semester Rental (76 days, due 01/04/2027) |
$13.56 as of Oct 20, 2026, 7:35 AM ET |
$3.97 |
-3% off
$17.53Rent Nowclick here! |
||
| eCampus 1825 Day eBook (expires 10/19/2031) |
1825 Day eBook (expires 10/19/2031) |
$20.34 as of Oct 20, 2026, 7:35 AM ET |
FREE | |||
| eCampus New |
New | $18.06 as of Oct 20, 2026, 7:35 AM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus (Marketplace) Used (Marketplace) |
Used (Marketplace) |
$2.51 as of Oct 20, 2026, 7:35 AM ET |
$3.97 |
62% off
$6.48Buy Nowclick here! |
||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus New |
New | $18.06 as of Oct 20, 2026, 7:35 AM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus Semester Rental (76 days, due 01/04/2027) |
Semester Rental (76 days, due 01/04/2027) |
$13.56 as of Oct 20, 2026, 7:35 AM ET |
$3.97 |
-3% off
$17.53Rent Nowclick here! |
||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus Quarter Rental (59 days, due 12/18/2026) |
Quarter Rental (59 days, due 12/18/2026) |
$12.88 as of Oct 20, 2026, 7:35 AM ET |
$3.97 |
1% off
$16.85Rent Nowclick here! |
||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus Short Term Rental (60 days, due 12/19/2026) |
Short Term Rental (60 days, due 12/19/2026) |
$12.20 as of Oct 20, 2026, 7:35 AM ET |
$3.97 |
5% off
$16.17Rent Nowclick here! |
||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| RedShelf eTextbook (RedShelf) |
eTextbook (RedShelf) |
$12.43 as of Oct 20, 2026, 7:35 AM ET |
FREE |
27% off
$12.43Buy Nowclick here! |
||
| eCampus 1825 Day eBook (expires 10/19/2031) |
1825 Day eBook (expires 10/19/2031) |
$20.34 as of Oct 20, 2026, 7:35 AM ET |
FREE | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| Knetbooks Rental |
Rental | Check price at Knetbooks |
at checkout | |||
| BiggerBooks New, used & rental |
New, used & rental | Check price at BiggerBooks |
at checkout | |||
| VitalSource eBook |
eBook | Check price at VitalSource |
at checkout | |||
| Amazon New & used |
New & used | Check price at Amazon |
at checkout | |||
| AbeBooks Used & new (marketplace) |
Used & new (marketplace) | Check price at AbeBooks |
at checkout | |||
| SellBackBooks Sell back |
Sell back | Check price at SellBackBooks |
at checkout | |||
Prices checked Oct 20, 2026, 7:35 AM ET. Totals include shipping where the store lists it. As an Amazon Associate, CheapestTextbooks.com earns from qualifying purchases.
In this classic text, Dr. Davis provides a clear introduction to computability, at an advanced undergraduate level, that serves the needs of specialists and non-specialists alike. In Part One (Chapters 1–5), Professor Davis outlines the general theory of computability, discussing such topics as computable functions, operations on computable functions, recursive functions, Turing machines, self-applied, and unsolvable decision problems. The author has been careful, especially in the first seven chapters, to assume no special mathematical training on the part of the reader. Part Two (Chapters 6–8) comprises a concise treatment of applications of the general theory, incorporating material on combinatorial problems, Diophantine Equations (including Hilbert's Tenth Problem) and mathematical logic. The final three chapters (Part 3) present further development of the general theory…
When you open this page we ask eCampus, Amazon, Knetbooks, BiggerBooks, VitalSource and RedShelf for their current prices on ISBN 9780486151069 and sort every offer by its total with shipping. Rental rows show the term (semester, quarter or short term) and that term goes with you to the store's cart, and eBook rows link straight to the 180-day or no-expiry option you picked. Prices are rechecked at least every 30 minutes, so confirm the total at checkout.
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