Cita APA (7a ed.)

Liebert, R. M., Marmor, G. S., & Wicks-Nelson, R. (1977). Developmental psychology (Second edition.). Prentic-Hall, Inc.

Cita Chicago Style (17a ed.)

Liebert, Robert M., Gloria Strauss Marmor, y Rita Wicks-Nelson. Developmental Psychology. Second edition. Englewood Cliffs, New Jersey: Prentic-Hall, Inc, 1977.

Cita MLA (9a ed.)

Liebert, Robert M., et al. Developmental Psychology. Second edition. Prentic-Hall, Inc, 1977.