APA (7th ed.) Citation

Downing, D. (2006). Calculus the easy way (4th ed.). Barron's.

Chicago Style (17th ed.) Citation

Downing, Douglas. Calculus the Easy Way. 4th ed. Hauppauge, N.Y: Barron's, 2006.

MLA (9th ed.) Citation

Downing, Douglas. Calculus the Easy Way. 4th ed. Barron's, 2006.