Kerr, Gavin A comparison of bridge watch-keeping patterns and the potential for fatigue on- board cruise ships in the year 2018 / Gavin Kerr. - vi, 40 pages : color illustrations ; 30 cm - B.Sc. (Hons) Nautical Science . Includes bibliographical references. Subjects--Topical Terms: Merchant marine--Watch duty Dewey Class. No.: B.Sc. Nautical Science