TY  - GEN
AU  - Kumar, Arvind
TI  - Environmental challenges of the 21st century
SN  - 8176484067
U1  - 577.14 KUM 
PY  - 2003///
CY  - New Delhi
PB  - APH Publishing Corporation
KW  - Environmental protection
KW  - Pollution--Environmental aspects
KW  - Sustainable development
KW  - Environmental Pollution
KW  - Nurturing Biodiversity
ER  -