TY  - BOOK
AU  - Clarke,George L.
TI  - Elements of ecology
T2  - Contribution no. 704 from the Woods Hole Oceanographic Institution
U1  - 575.3 CLA/E 
PY  - 1954///
CY  - . - New York
PB  - : Wiley
KW  - Ecology
N1  - Includes bibliography
ER  -