TY  - BOOK
AU  - Elton, Charles.
TI  - The ecology of invasions: : By animals and plants
SN  - 412114305
U1  - 574.5 
PY  - 1972///
CY  - London: 
PB  - Chapman and Hall Ltd., 
KW  - Ecology
KW  - Food chain
KW  - Life science
KW  - Populations
ER  -