APA

Mortensen D. G., . (1960). Guidance casebook and study materials. New York: Wiley.

Chicago

Mortensen Donald G, . 1960. Guidance casebook and study materials. New York: Wiley.

Harvard

Mortensen D. G., . (1960). Guidance casebook and study materials. New York: Wiley.

MLA

Mortensen Donald G, . Guidance casebook and study materials. New York: Wiley. 1960.