Citazione APA

Lindgren, H. C. (1956). Educational Psychology in the Classroom (1956.). John Wiley & Sons, Inc..

Stile di citazione Chicago

Lindgren, Henry Clay. Educational Psychology in the Classroom. 1956. New York: John Wiley & Sons, Inc., 1956.

Citazione MLA

Lindgren, Henry Clay. Educational Psychology in the Classroom. 1956. John Wiley & Sons, Inc., 1956.