World beneath the sea
By: by James Dugan [and others] Foreword by Gilbert M. Grosvenor.
Contributors: National Geographic Society (U.S.). Special Publications Division.
Series: National geographic books,
Publisher: National Geographic Society
Published: 1969
Place of publication: Washington
Language: eng
Number of pages: 204
Subjects: Underwater exploration.; Oceanography -- Popular works.
Notes: Bibliography: p. 202.