Hans Hass

To unplumbed depths,  Hans Hass Harrap, 2005-09-27 ISBN 9780245509469     Conquest of the underwater world  Hans Hass David and Charles, 2005-09-10 ISBN 9780715367131     Red Sea Explorers (Immel's Red Sea Library)  Hans Hass Peter Vine Hagen Schmid Paperback. Immel Publishing Ltd, 1987-12-27 ISBN 9780907151302     Challenging the Deep  Hans Hass Hardcover. William Morrow & Co, 1976-03-01 ISBN 9780688001407     Human Animal: The Mystery of Man's Behaviour  Hans Hass J.Maxwell Brownjohn Hardcover. Hodder & Stoughton Ltd, 1971-02-22 ISBN 9780340107034