TY  - BOOK
AU  - Hedgpeth Joel W Ed.
TI  - Treatise on marine ecology and paleoecology
T2  - Geological society of America Memoirs; 67
U1  - G9555:5, J7.1 
PY  - 1957///
CY  - New York 
PB  - The Geological society of America  
KW  - Ecological groups
ER  -