Trochim, William M. <br/><br/>
Research Methods  the essential knowledge base   Eng  
Trochim, William M  
 - Delhi   Cengage learning Inc  2016  
 - 422p.  
<br/><br/> includes glossary and index 
<br/><br/><label>ISBN: </label>9788131530856 
<br/><br/><label>Subjects--Personal Names: </label>
<br/><br/><label>LC Class. No.: </label>001.42 TRO 2016 
<br/><br/><label>Dewey Class. No.: </label>001.42 TRO 2016