You will need both the textbook, and a lot of paper for notes, homework, and scrap paper.
Textbook: Calculus Early Transcendentals , 3rd edition Rogawski.
In fact, you can use the second edition by Rogawski, or an equivalent book if you have taken a standard mathematics/engineering/physics Calculus course elsewhere. The newest edition is available in the bookstore. Talk to me if you need help obtaining a cheap book of an equivalent quality.