O'Ballance, Edgar The wars in Vietnam, 1954-1980 / Edgar O'Ballance. - New enl. ed. - New York, N.Y. : Hippocrene Books, 1981. - 246 p., [4] p. of plates : ill. ; 22 cm. Includes bibliographical references and index. ISBN: 0882546015 (pbk.) Subjects--Topical Terms: Vietnam War, 1961-1975. Subjects--Geographic Terms: Vietnam--History--1975-