Lindgren, H. C. (1983). Educational psychology in the classroom (6th ed.). Philippine Graphic Arts.
Citace podle Chicago (17th ed.)Lindgren, Henry Clay. Educational Psychology in the Classroom. 6th ed. Caloocan, Metro Manila: Philippine Graphic Arts, 1983.
Citace podle MLA (9th ed.)Lindgren, Henry Clay. Educational Psychology in the Classroom. 6th ed. Philippine Graphic Arts, 1983.
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