Cita APA (7th ed.)

Newman, B. M., & Newman, P. R. (2009). Development through life: A psychosocial approach (10th ed.). Wadsworth/Cengage Learning.

Cita Chicago (17th ed.)

Newman, Barbara M., i Philip R. Newman. Development Through Life: A Psychosocial Approach. 10th ed. Australia: Wadsworth/Cengage Learning, 2009.

Cita MLA (9th ed.)

Newman, Barbara M., i Philip R. Newman. Development Through Life: A Psychosocial Approach. 10th ed. Wadsworth/Cengage Learning, 2009.