Publication

1979-06-01 - Government printing office

Word Count

0 words, Guess

Page Count

0 pages

Physical Format

Paperback

Identifiers

  • Open LibraryOL9837504M
  • ISBN-100318117428
  • ISBN-139780318117423

First Sentence

Divers have penetrated the oceans throughout the centuries for purposes identical to those of modern diving: to acquire food, search for treasure, carry out military operations, perform scientific research and exploration, and enjoy the aquatic environment.

Subjects

Topics

Deep diving

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