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2
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Descriptive statistics for teachers / Estelle S. Gellman.
- 371.26 G319
- Gellman, Estelle S.
- Harper & Row,
- [1973]
- New York :
-
Rival hypotheses : alternative interpretations of data based conclusions / Schuyler W. Huck, Howard M. Sandler.
- 300.727 H882
- Huck, Schuyler W.
- Harper & Row,
- c1979.
- New York :