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2
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An introduction to logic and scientific method / by Morris R. Cohen and Ernest Nagel.
- 160 C6781 1934
- Cohen, Morris Raphael, 1880-1947.
- Routledge & Kegan Paul,
- 1934
- London :
-
An introduction to logic and scientific method / by Morris R. Cohen and Ernest Nagel.
- 160 C6781i 1964
- Cohen, Morris Raphael, 1880-1947.
- Routledge & Kegan Paul,
- 1964.
- London :