Παραπομπή APA

Wolpert, L. (2007). Principles of development (3rd.). Oxford University Press.

Παραπομπή Chicago Style

Wolpert, Lewis. Principles of Development. 3rd. Oxford: Oxford University Press, 2007.

Παραπομπή MLA

Wolpert, Lewis. Principles of Development. 3rd. Oxford University Press, 2007.