Citazione Stile APA (7a Edizione)

Lindgren, H. C. (1967). Educational psychology in the classroom (3d ed.). Wiley.

Citazione stile Chigago Style (17a edizione)

Lindgren, Henry Clay. Educational Psychology in the Classroom. 3d ed. New York: Wiley, 1967.

Citatione MLA (8a ed.)

Lindgren, Henry Clay. Educational Psychology in the Classroom. 3d ed. Wiley, 1967.