LEEDY, Paul. D <br/><br/>
Practical Research, Planning and Design 

 - 10th Ed. 
 - Harlow, Essex  Pearson Education Limited  2014 
 - 374 pages  27 cm 
<br/><br/><label>ISBN: </label>9781292021171 
<br/><br/><label>Dewey Class. No.: </label>300.72 LEED