APA

North American Rapid Excavation and Tunneling Conference (1st : 1972 : Chicago I., Lane K. S., Garfield L. A., American Society of Civil Engineers & American Institute of Mining M. a. P. E. (1972). Proceedings. New York: Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers.

Chicago

North American Rapid Excavation and Tunneling Conference (1st : 1972 : Chicago Ill.), Lane Kenneth S, Garfield Larry A, American Society of Civil Engineers and American Institute of Mining Metallurgical and Petroleum Engineers. 1972. Proceedings. New York: Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers.

Harvard

North American Rapid Excavation and Tunneling Conference (1st : 1972 : Chicago I., Lane K. S., Garfield L. A., American Society of Civil Engineers and American Institute of Mining M. a. P. E. (1972). Proceedings. New York: Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers.

MLA

North American Rapid Excavation and Tunneling Conference (1st : 1972 : Chicago Ill.), Lane Kenneth S, Garfield Larry A, American Society of Civil Engineers and American Institute of Mining Metallurgical and Petroleum Engineers. Proceedings. New York: Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers. 1972.