Dyfyniad APA

Borg, W. R., & Gall, M. D. (1983). Educational research: An introduction (4th ed.). Longman.

Dyfyniad Arddull Chicago

Borg, Walter R., and Meredith D. Gall. Educational Research: An Introduction. 4th ed. New York: Longman, 1983.

Dyfyniad MLA

Borg, Walter R., and Meredith D. Gall. Educational Research: An Introduction. 4th ed. Longman, 1983.

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