APA (7th ed.) Citation

Hirsch, L., & Goodman, A. (2008). Understanding elementary algebra (6th edition.). Cengage Learning.

Chicago Style (17th ed.) Citation

Hirsch, Lewis, and Arthur Goodman. Understanding Elementary Algebra. 6th edition. Australia: Cengage Learning, 2008.

MLA (9th ed.) Citation

Hirsch, Lewis, and Arthur Goodman. Understanding Elementary Algebra. 6th edition. Cengage Learning, 2008.