Cita APA (7a ed.)

McDougall, W. (1933). An outline of psychology (6. ed.). Methuen.

Cita Chicago Style (17a ed.)

McDougall, William. An Outline of Psychology. 6. ed. London: Methuen, 1933.

Cita MLA (9a ed.)

McDougall, William. An Outline of Psychology. 6. ed. Methuen, 1933.