UN. (1993). Recommendations on the Transport of Dangerous Goods. United Nations.
Чикаго маягийн жагсаалтUN. Recommendations on the Transport of Dangerous Goods. New York: United Nations, 1993.
MLA ишлэлUN. Recommendations on the Transport of Dangerous Goods. United Nations, 1993.
Warning: These citations may not always be 100% accurate.