APA (7th ed.) Citation

Pennington, L. A. 1. . . e., & Berg, I. A. (1954). An introduction to clinical psychology (2nd ed.). Ronald Press.

Chicago Style (17th ed.) Citation

Pennington, Leon Alfred 1908- ed, and Irwin August Berg. An Introduction to Clinical Psychology. 2nd ed. New York: Ronald Press, 1954.

MLA (9th ed.) Citation

Pennington, Leon Alfred 1908- ed, and Irwin August Berg. An Introduction to Clinical Psychology. 2nd ed. Ronald Press, 1954.