Delmar-Morgan, Edward Locker, 1903- North Sea harbours and pilotage : Calais to Den Helder / Edward Delmar-Morgan. - 4th ed. / edited by Jack Coote. - London : Adlard Coles, 1980. - iii-xvi, 114 p. : ill, charts, maps ; 26 cm. Col. chart on lining papers. Bibliography: p.105-106 - Includes index. ISBN: 0229115934 Subjects--Topical Terms: Pilot guides--North Sea. Dewey Class. No.: 623.8929