Polit, Denise F. <br/><br/>
Nursing research :  principles and methods / 
Denise F. Polit, Bernadette P. Hungler. 
 - 3rd ed. 
 - Philadelphia :  Lippincott,  c1987. 
 - xvii, 571 p. :  ill. ; 
<br/><br/><label>ISBN: </label>0397546319 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nursing--Research--Methodology.<br/>Nursing.<br/>Research.
<br/><br/><label>LC Class. No.: </label>RT81.5  / .P64 1987