Cita APA (7th ed.)

Schell, R. E. (1975). Developmental psychology today (2nd ed.). Random House.

Cita Chicago (17th ed.)

Schell, Robert E. Developmental Psychology Today. 2nd ed. San Diego: Random House, 1975.

Cita MLA (9th ed.)

Schell, Robert E. Developmental Psychology Today. 2nd ed. Random House, 1975.