Cohen, Morris Raphael,  1880-1947. <br/><br/>
An introduction to logic and scientific method / 
By Morris R. Cohen and Ernest Nagel. 
 - Complete ed. 
 - London :  Routledge & K. Paul ,  1966. 
 - xiv, 467 p. :  ill. ;  23 cm. 
<br/><br/> Reprint. Originally published: New York : Harcourt, Brace and Co., 1934. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.<br/>Methodology.<br/>Logic--Study and teaching.