Using inflatable stoppings during production in noncoal mines /
by Edward D. Thimons and Fred N. Kissell ; Pittsburgh Mining and Safety Research Center.

APA Citation

Thimons, E. D., Kissell, F. N. (1976). Using inflatable stoppings during production in noncoal mines. [Washington]: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

Thimons, Edward D, and Fred N Kissell. Using Inflatable Stoppings During Production In Noncoal Mines. [Washington]: U.S. Dept. of the Interior, Bureau of Mines, 1976.

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