Health conservation at steel mills /
by J.A. Watkins.
APA Citation
Watkins, J. A. (John Armstrong). (1916). Health conservation at steel mills. Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines.
MLA Citation
Watkins, J. A. (John Armstrong), 1888-. Health Conservation At Steel Mills. Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines, 1916.
Warning: These citations may not always be complete (especially for serials).