Cita APA (7a ed.)

Boyd, D. R., & Bee, H. L. (2019). Lifespan development (Eighth, global edition.). Pearson.

Cita Chicago Style (17a ed.)

Boyd, Denise Roberts, y Helen L. Bee. Lifespan Development. Eighth, global edition. Harlow, England: Pearson, 2019.

Cita MLA (8a ed.)

Boyd, Denise Roberts, y Helen L. Bee. Lifespan Development. Eighth, global edition. Pearson, 2019.