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

 - 11th ed.  
 - Boston :  Pearson Merrill Prentice Hall,  2005. 
 - 407 p. :  ill. ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9781292095875 (pbk. ) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research--Methodology.