A study guide to epidemiology and biostatistics  

 - 3rd ed. 
 - Rockville :  Aspen Publishers ,  1990 . 
 - xv, 196 p. :  ill. ; 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0834201577 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medical statistics<br/>Epidemiology