APA-viite (7. p.)

Newman, B. M., & Newman, P. R. (2018). Development through life: A psychosocial approach (Thirteenth edition.). Cengage.

Chicago-viite (17. p.)

Newman, Barbara M., ja Philip R. Newman. Development Through Life: A Psychosocial Approach. Thirteenth edition. Boston, MA, USA: Cengage, 2018.

MLA-viite (9. p.)

Newman, Barbara M., ja Philip R. Newman. Development Through Life: A Psychosocial Approach. Thirteenth edition. Cengage, 2018.