TY  - BOOK
AU  - National Geographic Society (U.S.).Special Publications Division
TI  - The ocean realm
SN  - 0870442511
PY  - 1978///
CY  - Washington, D.C.
PB  - The Society
KW  - Underwater exploration
KW  - Marine biology
N1  - Includes index; Bibliography : p.196
ER  -