TY  - BOOK
AU  - Sinha,DrA.K.
TI  - Human health and environment
SN  - 8170248590
U1  - 363.73 
PY  - 1997///
CY  - New Delhi
PB  - A.P.H. Publishing Corporation, 
KW  - Ecology
N1  - Bibliographical references and index.
ER  -