Morrison, Marianne.

Mysteries of the sea : how divers explore the ocean depths / by Marianne Morrison. - Washington, DC : National Geographic, c2006. - 40 p. : col. ill. ; 21 cm. - National Geographic science chapters .

Includes bibliographical references (p. 39) and index.

9780792259541 (library binding) 0792259548 (library binding)

2006016323


Underwater exploration.
Deep diving.

GC65 / M65 2006

Hong Kong Nang Yan College of Higher Education
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