APA (7th ed.) Citation

Sands, P. F., Boldt, C. M. K., & Ruff, T. M. (1990). Blind pneumatic stowing in voids in abandoned mines. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Sands, Paul F., C. M. K. Boldt, and T. M. Ruff. Blind Pneumatic Stowing in Voids in Abandoned Mines. Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines, 1990.

MLA (9th ed.) Citation

Sands, Paul F., et al. Blind Pneumatic Stowing in Voids in Abandoned Mines. U.S. Dept. of the Interior, Bureau of Mines, 1990.