Paul D. Leedy, Timothy J. Newby & Peggy A. Ertmer  - <br/><br/>
Practical Research: Palnning And Design 

 - 6th ed 
 -   Prentice-Hall, Inc.  ©1997 
<br/><br/><label>ISBN: </label>9780132414074  187.5 
<br/><br/><label>Dewey Class. No.: </label>001.42 BRO