TY  - BOOK
AU  - Earle,Sylvia A.
AU  - Giddings,Al
ED  - National Geographic Society (U.S.). Special Publications Division
TI  - Exploring the deep frontier: the adventure of man in the sea 
SN  - 0870443437
PY  - 1980///
CY  - Washington, D.C.
PB  - National Geographic Society
KW  - Underwater exploration
KW  - Diving, Submarine
ER  -