Exploration by geophysical methods, extraction and transport of hard rock inclusions during overburden removal : questionnaire / transmitted by the Government of Czechoslovakia.
1984
تفصيلات التسجيلة (السجل)
رمز / رقم الاستدعاء[E/ECE/]COAL/GE.5/R.31/Add.1
العنوانExploration by geophysical methods, extraction and transport of hard rock inclusions during overburden removal : questionnaire / transmitted by the Government of Czechoslovakia.
المؤلفونCzechoslovakia
تاريخGeneva : UN, 20 Feb. 1984.
الوصف
5 p.