TY  - BOOK
AU  - Townsend, Colin R.
AU  - Begon, Michael
AU  - Harper, John L.
TI  - Essentials of Ecology 
SN  - 9781405156585
PY  - 2008///
CY  - Oxford 
PB  - Blackwell Publishing
KW  - Ecology
N1  - Includes References and Index
ER  -