Principles of sociology. 
By Ram Nath Sharma. 
 - 1st. 
 - New Delhi.:  Asia publishing house.,968. 
 - xiii, 460 p.:5 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Sociology. Principles of sociology. 
<br/><br/><label>Dewey Class. No.: </label>301