TY  - GEN
AU  - Mackenzie , A.
AU  - Ball , A.S. 
AU  - Virdee , S. R.
AU  - Hames , B. D.
TI  - Instant notes in ecology
SN  - 8176490369
U1  - 577 
PY  - 1999///
CY  - New Delhi
PB  - Viva Books 
KW  - CONSERVATION
KW  - BIOLOGY
KW  - ECOLOGY
KW  - ECOSYSTEM
KW  - ENVIRONMENTAL POLLUTION
KW  - GLOBAL WARMING
ER  -