Cohen, Morris Raphael,  1880-1947. <br/><br/>
An introduction to logic / 
by Morris R. Cohen and Ernest Nagel. 
 - London  Routledge and Kegan Paul,  1963 [Reprinted 1966] 
 - ix, 226 p. :  ill. ;  22 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.<br/>Methodology.
<br/><br/><label>Dewey Class. No.: </label>160  / COI 1966