DePoy, Elizabeth. <br/><br/>
Introduction to research :  understanding and applying multiple strategies / 
Elizabeth DePoy, Laura N. Gitlin. 
 - 4th ed. 
 - St. Louis, Mo. :  Elsevier/Mosby,  2011. 
 - xiv, 369 p. :  ill., map ;  24 cm. 
<br/><br/><label>ISBN: </label>9780323068543  RM169.57 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research design.