APA (7th ed.) Citation

O?Ballance. (1975). The wars in Vietnam, 1954-1973. Hippocrene Books.

Chicago Style (17th ed.) Citation

O?Ballance. The Wars in Vietnam, 1954-1973. New York: Hippocrene Books, 1975.

MLA (8th ed.) Citation

O?Ballance. The Wars in Vietnam, 1954-1973. Hippocrene Books, 1975.

Warning: These citations may not always be 100% accurate.