POLIT DENISE F. <br/><br/>
NURSING RESEARCH PRINCIPLES AND METHODS 

 - 4TH 
 - NEW YORK  J.B. LIPPINCOTT COMPANY   1991 
<br/><br/><label>ISBN: </label>0-397-54820-6 
<br/><br/><label>Dewey Class. No.: </label>610.73072  / 1