<p>Im taking math 20c and there're like.. 4 optional books. I dont want to buy all of them cuz i think it's gonna be a waste. Can some1 who has taken this class before give me some suggestions on which optional book helps more? Also, is there anyone selling the required books for math 20c ? thanks</p>
<p>none of the optional books are worth buying; they're on reserve at the library</p>
<p>amazon</p>
<p>half.com
abebooks.com</p>
<p>Speaking of math 20c textbooks, the mutivariable calculus required text just came in mail.
.. its paperback, I realize there is a hardcover version but would this paperback suffice? (contains same info? ) </p>
<p>checked amazon and other sites and when you type in the book title, paperback is the first thing that comes up. (if that matters.)</p>