Cita APA

Liebert, R. M., Poulos, R. W., & Marmor, G. S. (1979). Developmental psychology. Prentice-Hall.

Chicago Edition Citation

Liebert, Robert M., Rita Wicks- Poulos, i Gloria Strauss Marmor. Developmental Psychology. New Delhi: Prentice-Hall, 1979.

Cita MLA

Liebert, Robert M., et al. Developmental Psychology. Prentice-Hall, 1979.