Cita APA (7th ed.)

Aaronfreed, J. (1971). Developmental psychology today. CRM Books.

Cita Chicago (17th ed.)

Aaronfreed, Justin. Developmental Psychology Today. Del Mar, Calif.: CRM Books, 1971.

Cita MLA (8th ed.)

Aaronfreed, Justin. Developmental Psychology Today. CRM Books, 1971.