Cohen, Lillian <br/><br/>
Statistical methods for social scientists  introduction 

 - 
 - New Delhi  Prentice-hall of India private Ltd.  1963 
 - viii, 181 p. 
 -   .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>000  / C6606