APA (7th ed.) Citation

Lindgren, H. C. (1972). Educational psychology in the classroom (4η έκδ.). John Wiley & Sons.

Chicago Style (17th ed.) Citation

Lindgren, Henry Clay. Educational Psychology in the Classroom. 4η έκδ. New York: John Wiley & Sons, 1972.

MLA (8th ed.) Citation

Lindgren, Henry Clay. Educational Psychology in the Classroom. 4η έκδ. John Wiley & Sons, 1972.

Warning: These citations may not always be 100% accurate.