Paul D.Leedy <br/><br/>
Practical Research:  Planning and design/  English 
Paul D.Leedy 
 - New York:  Macmillan,  1974. 
 - ix,246p.:  index;  28 cm. 
<br/><br/><label>ISBN: </label>0023692405 
<br/><br/><label>Subjects--Index Terms: </label>Research Methodology 
<br/><br/><label>Dewey Class. No.: </label>001.42  / LEE