Cita APA (7a ed.)

Pergamon Press. (1970). Pergamon general psychology series: PGPS. Allyn and Bacon.

Cita Chicago Style (17a ed.)

Pergamon Press. Pergamon General Psychology Series: PGPS. Boston ˜[u.a.]œ: Allyn and Bacon, 1970.

Cita MLA (9a ed.)

Pergamon Press. Pergamon General Psychology Series: PGPS. Allyn and Bacon, 1970.