Ray, G.L.  . <br/><br/>
Research methods in social sciences and extension education /  
by G.L. Ray and Sagar Mondal. 
 - Calcutta :   Naya Prokash ,   1999 
 - 326p :  
<br/><br/><label>ISBN: </label>81-85421-29-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>T48  / N9