Results: 1 - 2 of 2
Dec 31, 1988
Open File Report
… T. and Kalkreuth, W.D. (1989): A regional evaluation of coal quality in the … … Open File Report 1989-01 … A Regional Evaluation of Coal Quality …
Nov 30, 1987
Open File Report
… quality parameters plotted on regional geological maps, and … of coal quality trends from the regional maps should only be done … Cameron, A.R. (1987): A regional evaluation of coal quality in the …