TY  - BOOK
AU  - Begon,Michael
AU  - Harper,John L.
AU  - Townsend,Colin R.
TI  - Ecology: : individuals, populations and communities 
U1  - 574.5 
PY  - 1986///
CY  - Oxford
PB  - Blackwell Scientific Publications
KW  - ECOLOGIA
ER  -