Analyses of ash from coals of the United States
By: by W.A. Selvig and F.H. Gibson.
Contributors: Gibson, F. H. 1903-
Series: Technical paper / United States. Bureau of Mines ;; 679; Technical paper (United States. Bureau of Mines) ;; 679.
Publisher: U.S. Govt. Print. Off.
Published: 1945
Place of publication: Washington
Language: eng
Number of pages: 20
Subjects: Coal -- Analysis.; Coal -- United States.
Notes: Includes bibliographical references.
Cover title.
At head of title: United States Department of the Interior, Harold L. Ickes, secretary; Bureau of Mines, R.R. Sayers, director.