Cita APA (7th ed.)

Crain, W. (1992). Theories of development: Concepts and applications (3rd ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Crain, William. Theories of Development: Concepts and Applications. 3rd ed. Englewood Cliffs, N.J: Prentice-Hall, 1992.

Cita MLA (9th ed.)

Crain, William. Theories of Development: Concepts and Applications. 3rd ed. Prentice-Hall, 1992.