Cita APA (7th ed.)

Lindgren, H. C. (1956). Educational psychology in the classroom. Wiley.

Cita Chicago (17th ed.)

Lindgren, Henry Clay. Educational Psychology in the Classroom. New York: Wiley, 1956.

Cita MLA (8th ed.)

Lindgren, Henry Clay. Educational Psychology in the Classroom. Wiley, 1956.