TY  - BOOK
AU  - Townsend,Colin R.
AU  -  Begon,Michael
AU  - Harper,John L.
TI  - Essentials of ecology
SN  - 9781405156585
U1  - 577 T663E3 
PY  - 2008///
CY  - Malden
PB  - Blackwell
KW  - Environmental sciences
KW  - Ecology
ER  -