Treasures in the sea
McClung, Robert M.
National Geographic Society (U.S.).Special Publications Division.
[Washington] National Geographic Society
c1972
"Prepared by the Special Publications Division of the National Geographic Society."
Describes some of the treasures to be found in the seas, including cargoes from wrecked ships, valuable shells, and pearls
Shipwrecks
Underwater exploration
Marine biology
Shipwrecks.
Underwater exploration.