Hans Hass books & textbook
Men beneath the sea: Man's conquest of the underwater world
St. Martin's Press /1975T Hardcover / 407 Pages
HUMAN ANIMAL: THE MYSTERY OF MAN'S BEHAVIOUR
CORGI CHILDRENS /1973-01-26 Paperback
isbn-10: 0552091359 / isbn-13: 9780552091350
Manta;: Under the Red Sea with spear and camera
Rand, McNally /1953T Hardcover / 278 Pages
Challenging the Deep (English and German Edition)
William Morrow & Co /1976T Hardcover / 266 Pages
isbn-10: 0688001408 / isbn-13: 9780688001407
Conquest of the underwater world
David and Charles /1975T Hardcover / 407 Pages
isbn-10: 0715367137 / isbn-13: 9780715367131
Diving to Adventure: The Daredevil Story of Hunters Under the Sea
Doubleday & Co. /1951T Hardcover