APA (7th ed.) Citation

Lindgren, H. C. (1980). Educational psychology in the classroom (6th ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Lindgren, Henry Clay. Educational Psychology in the Classroom. 6th ed. New York: Oxford University Press, 1980.

MLA (9th ed.) Citation

Lindgren, Henry Clay. Educational Psychology in the Classroom. 6th ed. Oxford University Press, 1980.