Gaya APA

Swanson, C, P., Fromm-Reichmann, F. (1950). Principles of intensive psychotherapy . London: London: Phoenix Books; 1950.

Gaya MLA

Swanson, Carl, P.., Fromm-Reichmann, Frieda. "Principles of intensive psychotherapy". London: London: Phoenix Books; 1950, 1950. Text.