182605 Borg, W. R., & Gall, M. D. (1989). Educational research: An introduction. New York : Longman.
Chicago-čujuhus (17. p.)182605 Borg, Walter R., juo Meredith D. Gall. Educational Research: An Introduction. New York : Longman, 1989.
MLA-čujuhus (9. p.)182605 Borg, Walter R., juo Meredith D. Gall. Educational Research: An Introduction. New York : Longman, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.