Dyfyniad APA

Gage, N. L., & Berliner, D. C. (1984). Educational psychology (Third edition.). Houghton Mifflin.

Dyfyniad Arddull Chicago

Gage, N. L., and David C. Berliner. Educational Psychology. Third edition. Boston: Houghton Mifflin, 1984.

Dyfyniad MLA

Gage, N. L., and David C. Berliner. Educational Psychology. Third edition. Houghton Mifflin, 1984.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.