Cohen, Morris R. <br/><br/>
An introduction to logic and scientific method / 
Morris R. Cohen and Ernest Nagel. 
 - New York,  Harcourt, Brace and company  [c1934] 
 - xii, 467 p.  22 cm. 
<br/><br/> "First edition." 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.<br/>Methodology.
<br/><br/><label>Dewey Class. No.: </label>160  / COI 1934