Polit, Denise F. <br/><br/>
Nursing research : principles and methods 

 - 7th ed. 
 - Philadelphia :  Lippincott,  2004. 
 - xvii, 758p. 
<br/><br/>includes bibliography references and index 
<br/><br/><label>ISBN: </label>9780781737333 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nursing--Research--Methodology<br/>Nursing--Research
<br/><br/><label>LC Class. No.: </label>WY20.5