Ruhen, Olaf Minerva Reef / Olaf Ruhen ; Line drawings by Clem Seale. - [1st American ed.] - Boston : Little, Brown, 1964. - xiv, 304 pages : illus., ports., chart (on lining papers), 22 cm. - 910.4(265) (NLA) . Subjects--Topical Terms: Shipwreck survival Universal Decimal Class. No.: 910.4(265) (NLA)