TY  - BOOK
AU  - Dugan,James
ED  - National Geographic Society (U.S.).
TI  - World beneath the sea
AV  - GC65 .W67 1967
U1  - 910/.09/162 
PY  - 1967///]
CY  - Washington
PB  - National Geographic Society
KW  - Underwater exploration
KW  - Exploration sous-marine
KW  - Océanographie
N1  - Bibliography: p. 202
UR  - http://www.archive.org/details/worldbeneathsea00duga
ER  -