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

 - 9th 
 - Upper Saddle River, N.J.; Harlow :  Pearson Education  2009 
 - 1 v. : ill. ; 28 cm. (pbk) 
<br/><br/><label>ISBN: </label>0131365665 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research