APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Lindgren, Henry Clay. Educational Psychology in the Classroom. 6. ed. New York u.a: Oxford Univ. Press, 1980.

MLA (9th ed.) Citation

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