Basic coal research in the United States.
By: Compiled by staff, Bureau of Mines, Coal Research.
Series: United States. Bureau of Mines. Information circular ;; 8390; Information circular (United States. Bureau of Mines) ;; 8390.
Publisher: U.S. Dept. of the Interior; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1968
Place of publication: [Washington]
Language: eng
Number of pages: 56
Subjects: Coal -- Research.