APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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