APA (7th ed.) Citation

Hahn, M. E., & MacLean, M. S. (1955). Counseling psychology (2a. ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Hahn, Milton E., and Malcolm S. MacLean. Counseling Psychology. 2a. ed. Nueva York: McGraw-Hill, 1955.

MLA (9th ed.) Citation

Hahn, Milton E., and Malcolm S. MacLean. Counseling Psychology. 2a. ed. McGraw-Hill, 1955.