Annual report of research and technologic work on coal
Subtitle: fiscal year 1948
By: by A.C. Fieldner and Sidney Gottlieb
Contributors: Gottlieb, Sidney
Series: Information circular / Bureau of Mines -- 7518; Information circular (United States. Bureau of Mines) -- 7518
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1949
Place of publication: Washington, D.C
Language: eng
Number of pages: 87
Subjects: Coal mines and mining -- United States; Coal