TY  - BOOK
AU  - Begon, Michael
AU  - Harper , John L. 
AU  - Townsend, Colin R.
TI  - Essentials of ecology
SN  - 1405103280
U1  - 577 21st ed.
PY  - 2003///
CY  - Germany
PB  - Blackwell
KW  - Ecology
N1  - Index: pp 513-30
ER  -