Exploring the deep frontier
Subtitle: the adventure of man in the sea
By: by Sylvia A. Earle and Al Giddings ; prepared by the Special Publications Division, National Geographic Society, Washington, D.C.
Contributors: Giddings, Al, 1937- joint author.; National Geographic Society (U.S.). Special Publications Division.
Publisher: The Society
Published: 1980
Place of publication: [Washington, D.C.]
Language: eng
Number of pages: 296
Subjects: Underwater exploration.; Deep diving.
Notes: Bibliography: p. 285.
Includes index.