Preparation of an industrial classification of medium-zone coals / transmitted by the ICCP.
1982
تفصيلات التسجيلة (السجل)
رمز / رقم الاستدعاء[E/ECE/]COAL/GE.3/R.58/Add.1
العنوانPreparation of an industrial classification of medium-zone coals / transmitted by the ICCP.
تاريخGeneva : UN, 5 July 1982.
الوصف
1 p.