Dust problems in the mines of the Pennsylvania anthracite region
By: by Leland H. Johnson.
Series: Technical paper - United States. Bureau of Mines ;; 704; Technical paper (United States. Bureau of Mines) ;; 704.
Publisher: U.S. Govt. Print. Off.
Published: 1947
Place of publication: Washington
Language: eng
Number of pages: 34
Subjects: Dust control.; Anthracite coal -- Pennsylvania.
Notes: Cover title.
At head of title: United States Department of the Interior ... Bureau of Mines.