Green, Edwin A business of national importance : the Royal Mail Shipping Group, 1902-1937 / Edwin Green & Michael Moss - London : Methuen, 1982 - xii, 291 p. : ill. ; 24 cm. Includes index Bibliography : p. [267]-269 LCCN: 82-006480 Subjects--Topical Terms: Merchant marine--History--Great BritainShipping--History--Great Britain