TY  - BOOK
AU  - Begon, Michael,
AU  - Harper,John L.
AU  - Townsend,Colin R.
TI  - Ecology: Individuals, populations and communities 
SN  - 0865421110
AV  - QH541 B43 1990
PY  - 1990///
CY  - Boston
PB  - Blackwell Scientific
KW  - Ecología
ER  -