Report : Economic Commission for Europe, Committee on Energy, Working Party on Coal, 10th Ad Hoc Meeting on the Elaboration of an International Classification of Coals in Seam, Geneva, 16-18 September 1992.
1992
تفصيلات التسجيلة (السجل)
رمز / رقم الاستدعاء[E/ECE/]ENERGY/WP.1/AC.1/4
العنوانReport : Economic Commission for Europe, Committee on Energy, Working Party on Coal, 10th Ad Hoc Meeting on the Elaboration of an International Classification of Coals in Seam, Geneva, 16-18 September 1992.
عنوان الإجتماع
تاريخGeneva : UN, 2 Oct. 1992.
الوصف
6 p. : ill.