Cita APA (7th ed.)

Crain, W. C. (2000). Theories of development: Concepts and applications (4th ed.). Prentice Hall.

Cita Chicago (17th ed.)

Crain, William C. Theories of Development: Concepts and Applications. 4th ed. Uppder Saddle River, N.J: Prentice Hall, 2000.

Cita MLA (9th ed.)

Crain, William C. Theories of Development: Concepts and Applications. 4th ed. Prentice Hall, 2000.