Cita APA (7th ed.)

Thomas, W. I., & Thomas, D. S. (1928). The child in America; behavior problems and programs. A. A. Knopf.

Cita Chicago (17th ed.)

Thomas, William Isaac, i Dorothy Swaine Thomas. The Child in America; Behavior Problems and Programs. New York: A. A. Knopf, 1928.

Cita MLA (9th ed.)

Thomas, William Isaac, i Dorothy Swaine Thomas. The Child in America; Behavior Problems and Programs. A. A. Knopf, 1928.

Atenció: Aquestes cites poden no estar 100% correctes.