Borg, W. R., & Gall, M. D. (1983). Educational research: An introduction (4th ed.). Longman.
Lua i Stíl Chicago (17ú heag.)Borg, Walter R., agus Meredith D. Gall. Educational Research: An Introduction. 4th ed. New York: Longman, 1983.
Lua MLA (8ú heag.)Borg, Walter R., agus Meredith D. Gall. Educational Research: An Introduction. 4th ed. Longman, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.