TY  - BOOK
AU  - SINGH GURUCHARAN
AU  - SETHI KAUR INDRAJEET
TI  - TOPICS AND TERMS IN ENVIRONMENTAL SCIENCE
SN  - 8171691773
U1  - 333.703 
PY  - 1992///
CY  - NEW DELHI
PB  - COMMONWEALTH PUBLISHERS
KW  - ENVIRONMENT SCIENCE
ER  -