APA (7th ed.) Citation

Choy, P., & Clark, D. G. (2011). Basic grammar and usage (8th ed.). Wadsworth Cengage Learning.

Chicago Style (17th ed.) Citation

Choy, Penelope, and Dorothy Goldbart Clark. Basic Grammar and Usage. 8th ed. Boston, Massachussets: Wadsworth Cengage Learning, 2011.

MLA (9th ed.) Citation

Choy, Penelope, and Dorothy Goldbart Clark. Basic Grammar and Usage. 8th ed. Wadsworth Cengage Learning, 2011.