TY  - BOOK
AU  - Chapman,J.L.
AU  - Reiss, M. J.
TI  - Ecology: Principles and applications 
SN  - 0521005752
U1  - 577.88 
PY  - 1999///
CY  - Delhi
PB  - Cambridge university press
KW  - Ecoligical
ER  -