Cohen, Morris Raphael <br/><br/>
Introducción a la lógica y al método científico 
Morris R. Cohen y Ernest Nagel. 
 - Buenos Aires  Amorrortu  [1968] 
 - 2 v. 
<br/><br/> Translation of : An introduction to logic and scientific method. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic<br/>Scientific research.