Cita APA (7a ed.)

Ziller, R. C., & Ziller, R. C. (1973). The social self. Pergamon general psychology series.

Cita Chicago Style (17a ed.)

Ziller, Robert C., y Robert Charles Ziller. "The Social Self." Pergamon General Psychology Series 1973.

Cita MLA (8a ed.)

Ziller, Robert C., y Robert Charles Ziller. "The Social Self." Pergamon General Psychology Series, 1973.