Soule, Gardner.
Undersea frontiers : exploring by deep-diving submarines / - Chicago : Rand McNally, c1968. - 253 p. : illus. ; 22 cm.
Includes Index.
Bibliography: p. 223-229.
68025128
Underwater exploration.
Oceanographic submersibles.
GC65 / .S68
551.4601 / SOU
Undersea frontiers : exploring by deep-diving submarines / - Chicago : Rand McNally, c1968. - 253 p. : illus. ; 22 cm.
Includes Index.
Bibliography: p. 223-229.
68025128
Underwater exploration.
Oceanographic submersibles.
GC65 / .S68
551.4601 / SOU
