Encyclopaedia of the social sciences / 
Edited by Edwin R. A. Seligman and Alvin Johnson. 
 - New York :   Macmillan,   ©1934. 
 - Vols. ;  27 cm. 
<br/><br/>V. 15-Trade Unions-Zwingli ;  
<br/><br/>300  300 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social science--Encyclopaedia. 
<br/><br/><label>Dewey Class. No.: </label>303 / E19