Broughton, Jack, 1925-2014 Thud Ridge / Jack Broughton ; With an introd. by Hanson W. Baldwin. - Philadelphia : Lippincott, 1969. - 230 pages : maps ; 22 cm. - 9(597)1961-75 (NLA) . Subjects--Topical Terms: Vietnam War, 1961-1975--Aerial operations, American Universal Decimal Class. No.: 9(597)1961-75 (NLA)