United Nations. Economic Commission for Europe & United nations. (1993). Chemical manufacturers' associations and related organisations: Directory of chemical producers and products. UN.
Чикаго маягийн жагсаалтUnited Nations. Economic Commission for Europe ба United nations. Chemical Manufacturers' Associations and Related Organisations: Directory of Chemical Producers and Products. New York: UN, 1993.
MLA ишлэлUnited Nations. Economic Commission for Europe ба United nations. Chemical Manufacturers' Associations and Related Organisations: Directory of Chemical Producers and Products. UN, 1993.
Warning: These citations may not always be 100% accurate.