Retzlaff, Ralph H <br/><br/>
National sample survey :  thirteenth round Sep 1957 - May 1958 / 
by Ralph H Retzlaff 
 - Culcutta :  Govt of India,  1962. 
 - 34p. : 
<br/><br/> No 64 : Indian villages <br/>a study of some social and economic aspects 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Survey
<br/><br/><label>Dewey Class. No.: </label>370  / RET.N