Necessity for more extended use of safety equipment in mining /
by D. Harrington.

APA Citation

Harrington, D. (Daniel)., United States. Bureau of Mines. (1938). Necessity for more extended use of safety equipment in mining. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

Harrington, D. (Daniel), 1878-, and United States. Bureau of Mines. Necessity for More Extended Use of Safety Equipment In Mining. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1938.

Warning: These citations may not always be complete (especially for serials).