Cita APA

Pennington, L. A., & Berg, I. A. (1966). An introduction to clinical psychology (3rd ed.). Ronald Press.

Citación estilo Chicago

Pennington, Leon Alfred, and Irwin August Berg. An Introduction to Clinical Psychology. 3rd ed. New York: Ronald Press, 1966.

Cita MLA

Pennington, Leon Alfred, and Irwin August Berg. An Introduction to Clinical Psychology. 3rd ed. Ronald Press, 1966.