United States. Department of State. Office of External Research & United States. Central Intelligence Agency. (1972). Who's who in North Vietnam. The Office?.
Chicago-viite (17. p.)United States. Department of State. Office of External Research ja United States. Central Intelligence Agency. Who's Who in North Vietnam. [Washington?: The Office?, 1972.
MLA-viite (8. p.)United States. Department of State. Office of External Research ja United States. Central Intelligence Agency. Who's Who in North Vietnam. The Office?, 1972.
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