Cita APA (7th ed.)

Newman, B. M., & Newman, P. R. (2015). Development through life: A psychosocial approach (Twelfth edition.). Cengage Learning.

Cita Chicago (17th ed.)

Newman, Barbara M., i Philip R. Newman. Development Through Life: A Psychosocial Approach. Twelfth edition. Stamford, CT: Cengage Learning, 2015.

Cita MLA (9th ed.)

Newman, Barbara M., i Philip R. Newman. Development Through Life: A Psychosocial Approach. Twelfth edition. Cengage Learning, 2015.