Herring, George C., 1936-, America's longest war : the United States and Vietnam, 1950-1975 / George C. Herring. - New York : Wiley, (c)1979. - xiii, 298 pages : map ; 22 cm. LCCN: 79016408 Subjects--Topical Terms: Vietnam War, 1961-1975--United States. LC Class. No.: DS558 / .A447 1979 DS558