Cita APA (7th ed.)

Baldwin, A. L. (1967). Theories of child development. John Wiley & Sons.

Cita Chicago (17th ed.)

Baldwin, Alfred L. Theories of Child Development. New York: John Wiley & Sons, 1967.

Cita MLA (9th ed.)

Baldwin, Alfred L. Theories of Child Development. John Wiley & Sons, 1967.