The Methodological unity of science  edited by Mario Bunge. 

 - DordrechtHolland  D. Reidel Publishing Company  1973 
 - vii, 264p., 22cm 
 - (Theory and decision library/ed by Gerald Eberlein andWerner Lein Fellner). (V.3). .
<br/><br/><label>ISBN: </label>90-277-0354-x. 
<br/><br/><label>Dewey Class. No.: </label>5.1.,  / B96M