TY  - GEN
AU  - Agarwala, S.P.
TI  - Environmental studies
SN  - 9788173197857
AV  - GE105    .A44 2006
PY  - 2006///
CY  - New Delhi
PB  - Narosa publishing house
KW  - Environmental sciences
KW  - Human ecology
KW  - Pollution
N1  - Includes bibliography and index
ER  -