Ryan, Cornelius. The longest day: June 6, 1944. - New York, Simon and Schuster, 1959. - 350 p. illus., ports., col. maps (on lining papers) 24 cm. Subjects--Topical Terms: World War, 1939-1945--Campaigns--France--Normandy. Dewey Class. No.: 940.5409 / RYA