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3
-
Research methods in education : an introduction / William Wiersma.
- 370.72 W648 1995
- Wiersma, William.
- Allyn And Bacon,
- c1995.
- Boston :
-
Research methods in education : an introduction / William Wiersma.
- 370.72 W648 1980
- Wiersma, William.
- F.E. Peacock,
- c1980.
- Itasca, Ill. :
-
Research methods in education : an introduction / William Wiersma.
- 370.72 W648 1969
- Wiersma, William.
- J. B. Lippincott,
- c1969.
- Philadelphia :