Leedy, Paul D. <br/><br/>
Practical research: planning and design 

 - 5th ed. 
 - New York  Macmillan  1993 
 - xiv, 348 p. 
<br/><br/><label>ISBN: </label>23692421 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research- Methodology
<br/><br/><label>Dewey Class. No.: </label>1.4  / LEE