Coal.
Subtitle: Hearings before the Special Subcommittee on Coal Research pursuant to H. Res. 400, to authorize a study leading to the establishment of a research and development program for the coal industry.  June 4, 6, and July 19, 1956.
Series: Its [Hearings before the] Committee on Interior and Insular Affairs, House of Representatives, Eighty-fourth Congress,; serial no. 35
Publisher: U.S. Govt. Print. Off.
Published: 1956
Place of publication: Washington
Language: eng
Number of pages: 164
Subjects: Coal -- Research.