Math 16a textbook - confused

<p>The two things below are the required materials for Math 16a:</p>

<p>Brief Calculus Vol One (Custom W/ Mymathlab), Goldstein
Ginn
Copyright 07
Edition 11</p>

<p>Brief Calculus Vol One (Custom Text Only), Goldstein
Ginn
Binding Pape
Copyright 07
Edition 11 </p>

<p>Do I have to buy both things?</p>

<p>And do I have to buy custom textbook or can I buy the regular one from amazon?
If I can buy regular textbook from amazon, what's the title?
There's one called "Calculus and it's applications" and "Brief Calculus and It's applications" both 11th edition by Goldstein.
If I can't, where's the cheapest place to buy the custom book?</p>

<p>anyone?????????</p>