Polit, Denise F. <br/><br/>
Essentials of nursing research :methods, appraisal, and utilization /Denise F. Polit, Cheryl Tatano Beck.  Methods, appraisal, and utilization 

 - 6th ed 
 - Philadelphia  Lippincott Williams & Wilkins  2006. 
<br/><br/><label>ISBN: </label>9780781749725 
<br/><br/><label>National Library of Medicine Call No.: </label>WY 20.5 P769e 2006