TY  - BOOK
AU  - Merrill, Ray M.
TI  - Environmental epidemiology: principles and methods 
T2  - ENV-SCI
SN  - 9788131302200
U1  - 614.599 MER-E ESci. 24719 
PY  - 2008///
CY  - New Delhi
PB  - Jones And Bartlett
KW  - Environmental health. Environmental Monitoring--methods.Epidemiologic Factors
ER  -