TY  - BOOK
AU  - Nayar,K.R
TI  - Ecology & Health: A System Approach / (Acc. 4213)
SN  - 8176480193
U1  - 333.7 NAY 22
PY  - 1998///]
CY  - New Delhi
PB  - A P H Publishing House.
KW  - Ecology
ER  -