Παραπομπή APA

Liebert, R. M. (1979). Developmental psychology. Prentice Hall of India.

Παραπομπή Chicago Style

Liebert, Robert M. Developmental Psychology. New Delhi: Prentice Hall of India, 1979.

Παραπομπή MLA

Liebert, Robert M. Developmental Psychology. Prentice Hall of India, 1979.