Beaty, J. J. (1990). Observing development of the young child (2nd ed.). Merril Publishing Company.
Cita Chicago (17th ed.)Beaty, Janice J. Observing Development of the Young Child. 2nd ed. Columbus: Merril Publishing Company, 1990.
Cita MLA (9th ed.)Beaty, Janice J. Observing Development of the Young Child. 2nd ed. Merril Publishing Company, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.