APA (7th ed.) Citation

Gatchel, R. J. (1989). An introduction to health psychology (2nd ed.). Random House.

Chicago Style (17th ed.) Citation

Gatchel, Robert J. An Introduction to Health Psychology. 2nd ed. New York: Random House, 1989.

MLA (9th ed.) Citation

Gatchel, Robert J. An Introduction to Health Psychology. 2nd ed. Random House, 1989.