TY  - GEN
AU  - Asthana, D. K.
TI  - A textbook of environmental studies: for undergraduate students(as per UGC syllabus)
SN  - 8121927641
PY  - 2006///
CY  - New Delhi
PB  - S. Chand & Company Ltd.
KW  - Environmental science
KW  - Environmental education
KW  - Environmental studies
ER  -