Gaya APA

Swanson, C, P., Maddi, S. (1968). Personality theories a comparative analysis . Illinois: Illinois: The Dorsey Press; 1968.

Gaya MLA

Swanson, Carl, P.., Maddi, Salvatore. "Personality theories a comparative analysis". Illinois: Illinois: The Dorsey Press; 1968, 1968. Text.