182605 Borg, W. R., & Gall, M. D. (1989). Educational research: An introduction. New York : Longman.
Lua i Stíl Chicago (17ú heag.)182605 Borg, Walter R., agus Meredith D. Gall. Educational Research: An Introduction. New York : Longman, 1989.
Lua MLA (9ú heag.)182605 Borg, Walter R., agus Meredith D. Gall. Educational Research: An Introduction. New York : Longman, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.