Injury experience in the nonmetal industries (except stone and coal), 1956 and 1957 /
by John C. Machisak, Naomi W. Kearney, and Hazel M. Keener.

APA Citation

Machisak, J. C., Keener, H. M., Kearney, N. W., United States. Bureau of Mines. (1960). Injury experience in the nonmetal industries (except stone and coal), 1956 and 1957. Washington: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

Machisak, John C, Hazel M Keener, Naomi W Kearney, and United States. Bureau of Mines. Injury Experience In the Nonmetal Industries (except Stone And Coal), 1956 And 1957. Washington: U.S. Dept. of the Interior, Bureau of Mines, 1960.