Statistical methods applied to education : a textbook for students of education in the quantitative study of school problems / by Harold O. Rugg.
- Harold Rugg
- Date:
- [1917?]
Licence: In copyright
Credit: Statistical methods applied to education : a textbook for students of education in the quantitative study of school problems / by Harold O. Rugg. Source: Wellcome Collection.
83/444 (page 61)
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