Improvement of reliability of opencast mining techniques in difficult geological, mining and climatic conditions / transmitted by the United Kingdom Government.
1983
Полное описание
Условное обозначение[E/ECE/]COAL/GE.4/R.20/Add.5
ЗаглавиеImprovement of reliability of opencast mining techniques in difficult geological, mining and climatic conditions / transmitted by the United Kingdom Government.
АвторыUnited Kingdom
ДатаGeneva : UN, 30 Nov. 1983.
Описание
8 p.