Riegel, Robert E. <br/><br/>
An introduction to the social sciences 
Robert E. Riegel, editor, W.L. Eager, Francis E. Merrill (and others) 
 - New York  London  D. Appleton-Century Company, Incorporated  c1941. 
 - 2 v. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences