Trochim, William M.K. <br/><br/>
Research methods 

 - 2nd ed.   
 - New Delhi  Biztantra  2003 
 - ix, 363 p.  
<br/><br/> Includes index  
<br/><br/><label>ISBN: </label>9788177223729  
<br/><br/><label>Dewey Class. No.: </label>300.72 TRO