Cita APA (7th ed.)

Wolpert, L. (2019). Principles of development (Sixth edition.). Oxford University Press.

Cita Chicago (17th ed.)

Wolpert, Lewis. Principles of Development. Sixth edition. Oxford, UK: Oxford University Press, 2019.

Cita MLA (9th ed.)

Wolpert, Lewis. Principles of Development. Sixth edition. Oxford University Press, 2019.