Cita APA (7th ed.)
Hoffmann, L. (1988). Developmental psychology today (5th. ed.). Random House.
Cita Chicago (17th ed.)
Hoffmann, Lois. Developmental Psychology Today. 5th. ed. San Diego: Random House, 1988.
Cita MLA (9th ed.)
Hoffmann, Lois. Developmental Psychology Today. 5th. ed. Random House, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.