Title Coal reserves of the United States : a progress report, January 1, 1960. / A summary of information concerning the quality and distribution of coal.

Publication Info.

Item Status

Description	v, 116 pages : maps, diagrams, tables. ; 24 cm.
Series	United States. Geological Survey. Bulletin ; 1136
	Geological Survey bulletin ; 1136.
Note	"Third progress report."
	Supersedes two preceding progress reports issued as U. S. Geological Survey Circular 94, 1950, and 293, 1954.
Bibliography	Bibliography: pages 106-114.
Subject	Coal -- United States.
	Coal.
	United States.