TY  - BOOK
AU  - Friis ,Robert H.
AU  - Sellers, Thomas A.
TI  - Epidomology for Public Health Practice 
SN  - 9781449665494
U1  - 614.4 
PY  - 2014///
CY  - New Delhi
PB  - Jones and Bartlett Publishers 
KW  - Epidemiology
KW  - Medical Science
N1  - index included
ER  -