APA

Gnagey W. J., Chesebro P. A. & Johnson J. J. (19711972). Learning environments: readings in educational psychology. New York: Holt, Rinehart and Winston.

Chicago

Gnagey William J, Chesebro Patricia A and Johnson James J. 19711972. Learning environments: readings in educational psychology. New York: Holt, Rinehart and Winston.

Harvard

Gnagey W. J., Chesebro P. A. and Johnson J. J. (19711972). Learning environments: readings in educational psychology. New York: Holt, Rinehart and Winston.

MLA

Gnagey William J, Chesebro Patricia A and Johnson James J. Learning environments: readings in educational psychology. New York: Holt, Rinehart and Winston. 19711972.