Feigl, P <br/><br/>
A graphical aid for determining sample size when comparing two independent proportions.  [electronic resource] 

 -  Biometrics  Mar 1978 
 - 111-22 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0006-341X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Sampling Studies