TY  - BOOK
AU  - Mackenzie, A.
AU  - Ball, A.S.
AU  - Virdee, S. R.
TI  - Ecology
T2  - The Instant Notes Series
SN  - 81-7649-036-9
U1  - 574.5 
PY  - 1999///
CY  - New Delhi
PB  - Viva Books
KW  - Ecology
ER  -