Cita APA (7th ed.)

Cavanaugh, J. C., & Blanchard-Fields, F. (2019). Adult development and aging (Eight edition.). Cengage Learning.

Cita Chicago (17th ed.)

Cavanaugh, John C., i Fredda Blanchard-Fields. Adult Development and Aging. Eight edition. Australia: Cengage Learning, 2019.

Cita MLA (9th ed.)

Cavanaugh, John C., i Fredda Blanchard-Fields. Adult Development and Aging. Eight edition. Cengage Learning, 2019.