Open AccessDevelopment of optimal terrace pit coal mining systems. Technical progress report, October 1- October 31, 1979
Author(s) -
D. G. McIntosh
Publication year - 1979
Language(s) - English
Resource type - Reports
DOI - 10.2172/5782312
Subject(s) - terrace (agriculture) , coal mining , legislation , mining engineering , coal , coal field , geology , hydrology (agriculture) , geography , environmental science , archaeology , political science , geotechnical engineering , law