Brinberg,David. <br/><br/>
Validity and the Research Process. 
David Brinberg. 
 - New Delhi.  Sage Publications.  1985. 
 - 175p. 
<br/><br/> Paper cover. 
<br/><br/><label>ISBN: </label>0803923031 
<br/><br/><label>Dewey Class. No.: </label>300.72