Trochim, William M.K.  <br/><br/>
The Research Methods Knowledge Base 
by William M. K. Trochim  
 - 3rd ed. 
 - United States of America   Thomson Corporation  2007 
 - xv, 361 pages; 28 cm. 
<br/><br/> includes references, glossary and index  
<br/><br/><label>ISBN: </label>9781592602902 
<br/><br/><label>Dewey Class. No.: </label>GR/001.4/T74/2007