TY  - BOOK
AU  - Clarke,George L.
TI  - Elements of ecology
SN  - 0471159751
U1  - 577 23
PY  - 1954/// [printing 1967]
CY  - New York
PB  - Wiley
KW  - Ecology
N1  - Bibliography: p. 505-522, 530-548. and index
ER  -