APA (7th ed.) Citation

Barker, V. C., Aufman, R. N., & Lockwood, J. S. (2009). Essential mathematics with applications (7th edition.). Cengage Learning.

Chicago Style (17th ed.) Citation

Barker, Vernon C., Richard N. Aufman, and Joanne S. Lockwood. Essential Mathematics with Applications. 7th edition. USA: Cengage Learning, 2009.

MLA (9th ed.) Citation

Barker, Vernon C., et al. Essential Mathematics with Applications. 7th edition. Cengage Learning, 2009.