United States. Department of State. Office of External Research & United States. Central Intelligence Agency. (1972). Who's who in North Vietnam. The Office?.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিUnited States. Department of State. Office of External Research এবং United States. Central Intelligence Agency. Who's Who in North Vietnam. [Washington?: The Office?, 1972.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিUnited States. Department of State. Office of External Research এবং United States. Central Intelligence Agency. Who's Who in North Vietnam. The Office?, 1972.
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