Robbins, R. J., & Conlon, R. J. (1976). Proceedings: Rapid excavation and tunneling conference, Las Vegas, Nevada, June14-17, 1976. New York, NY: American Institute of Mining, Metallurgical, and Petroleum Engineers.
Παραπομπή Chicago StyleRobbins, Richard J., and Robert J. Conlon. Proceedings: Rapid Excavation and Tunneling Conference, Las Vegas, Nevada, June14-17, 1976. New York, NY: American Institute of Mining, Metallurgical, and Petroleum Engineers, 1976.
Παραπομπή MLARobbins, Richard J., and Robert J. Conlon. Proceedings: Rapid Excavation and Tunneling Conference, Las Vegas, Nevada, June14-17, 1976. New York, NY: American Institute of Mining, Metallurgical, and Petroleum Engineers, 1976.
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