Engle, T. L., & Snellgrove, L. (1989). Psychology: Its principles and applications (9th edition.). Harcourt Brace Jovanovich.
Chicago Style (17th ed.) CitationEngle, T. L., and Louis Snellgrove. Psychology: Its Principles and Applications. 9th edition. Orlando: Harcourt Brace Jovanovich, 1989.
MLA (8th ed.) CitationEngle, T. L., and Louis Snellgrove. Psychology: Its Principles and Applications. 9th edition. Harcourt Brace Jovanovich, 1989.
Warning: These citations may not always be 100% accurate.