TY  - BOOK
AU  - Elton, Charles S.
TI  - Animal ecology
U1  - 591.5 
PY  - 1927///
CY  - London
PB  - Sidgwick & Jackson, ltd.
KW  - Animals
KW  - Ecology
N1  - " Nineeth impression 1962"; "List of references": p. 192-200
ER  -