APA (7th ed.) Citation

Plutchik, R., & Kellerman, H. (1980). Theories of emotion. Academic Press.

Chicago Style (17th ed.) Citation

Plutchik, Robert, and Henry Kellerman. Theories of Emotion. New York: Academic Press, 1980.

MLA (9th ed.) Citation

Plutchik, Robert, and Henry Kellerman. Theories of Emotion. Academic Press, 1980.