Cita APA (7a ed.)

Rulla, L. M. (1971). Depth psychology and vocation: A psycho-social perspective. Gregorian University Press [etc.].

Cita Chicago Style (17a ed.)

Rulla, Luigi M. Depth Psychology and Vocation: A Psycho-social Perspective. Roma [etc.]: Gregorian University Press [etc.], 1971.

Cita MLA (9a ed.)

Rulla, Luigi M. Depth Psychology and Vocation: A Psycho-social Perspective. Gregorian University Press [etc.], 1971.