APA (7th ed.) Citation

Gatchel, R. J., Baum, A., Krantz, D. S., & Singer, J. E. (1990). An introduction to health psychology (2nd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Gatchel, Robert J., Andrew Baum, David S. Krantz, and Jerome E. Singer. An Introduction to Health Psychology. 2nd ed. New York: McGraw-Hill, 1990.

MLA (8th ed.) Citation

Gatchel, Robert J., et al. An Introduction to Health Psychology. 2nd ed. McGraw-Hill, 1990.