TY  - BOOK
AU  - Ram, Lily Pritam Telu.
TI  - Environmental health and hygiene
SN  - 070691452-X
U1  - 614 
PY  - 1981///
CY  - New Delhi: 
PB  - Vikas Publishing House Pvt. Ltd., 
KW  - Chemical factor
KW  - Cultural factor
KW  - Environment
KW  - Food science
ER  -