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Educational research : an introduction / Meredith D. Gall, Joyce P. Gall, Walter R. Borg.
- 370.72 G1621 2003
- Gall, Meredith D., 1942-
- Allyn And Bacon,
- c2003.
- Boston :
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Educational research : an introduction / Meredith D. Gall, Walter R. Borg, Joyce P. Gall.
- 370.72 G1621 1996
- Gall, Meredith D., 1942-
- Longman Publishers USA,
- c1996.
- White Plains, N.Y. :