Search U.S. government technical reports digitized or harvested by TRAIL.
Analyses of Alabama coals
Analyses of Utah coals
Analyses of Tennessee coals
Analyses of Missouri coals
Analyses of Indiana coals
Analyses of Oklahoma coals
Analyses of Arkansas coals
Analyses of Kansas coals / [by the U.S. Bureau of Mines].
Analyses of Illinois coals.
Analyses of Pennsylvania bituminous coals :supplement to Technical Paper 590
Analyses of Virginia coals.
Analyses of Tennessee coals (including Georgia).
Handbook on coal sampling