Hustrulid, W. A., & Hustrulid, W. A. (1982). Underground mining methods handbook. New York: Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers.
Παραπομπή Chicago StyleHustrulid, W. A., and W. A. Hustrulid. Underground Mining Methods Handbook. New York: Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers, 1982.
Παραπομπή MLAHustrulid, W. A., and W. A. Hustrulid. Underground Mining Methods Handbook. New York: Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers, 1982.
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