TY  - BOOK
AU  - Anil Kumar
AU  - Khan, B.N.
AU  - Sinha, A.K.
TI  - Human health and environment
SN  - 8170248590
U1  - 613.1 
PY  - 1997///
CY  - New Delhi
PB  - APH Publishing Corporation
KW  - Health care
KW  - Hygine
KW  - Environment
ER  -