TY  - BOOK
AU  - Cohen,Morris Raphael
AU  - Nagel,Ernest
TI  - An introduction to logic and scientific method
U1  - 160  23 
PY  - 1934/// [reprint 1972]
CY  - London
PB  - George Routledge & Sons
KW  - Logic
N1  - Also published: New York : Harcourt, Brace, 1934; Includes exercises; Includes bibliographical footnotes and index
ER  -