(1967). Area handbook for North Vietnam. U S Govt. Printing Office.
Чикаго маягийн жагсаалтArea Handbook for North Vietnam. Washington D. C: U S Govt. Printing Office, 1967.
MLA ишлэлArea Handbook for North Vietnam. U S Govt. Printing Office, 1967.
Warning: These citations may not always be 100% accurate.