Consideration of the activities of the national mining research institutes of ECE countries and exchange of scientific, technical and economic information relating to the coal industry / transmitted by the Government of Bulgaria.
1982
تفصيلات التسجيلة (السجل)
رمز / رقم الاستدعاء[E/ECE/]COAL/GE.4/R.16/Add.7
العنوانConsideration of the activities of the national mining research institutes of ECE countries and exchange of scientific, technical and economic information relating to the coal industry / transmitted by the Government of Bulgaria.
المؤلفونBulgaria
تاريخGeneva : UN, 11 Mar. 1982.
الوصف
10 p.