MacMahon, Brian,  1923- <br/><br/>
Epidemiology :  principles and methods / 
by Brian MacMahon and Thomas F. Pugh 
 - Boston :  Little Brown & Co.,  1970 
 - 376 p. :  ill. ;  24 cm. 
<br/><br/>Bibliography : p. 333-361 
<br/><br/><label>ISBN: </label>0031654263 
<br/><br/><label>LCCN: </label>7301-027122 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology
<br/><br/><label>National Library of Medicine Call No.: </label>WA100  / .M167e 1970