Συλλογικό Έργο:	Rapid Excavation and Tunneling Conference New Orleans, Louisiana), American Institute of Mining, Metallurgical, and Petroleum Engineers, American Society of Civil Engineers, Canadian Institute of Mining and Metallurgy, Engineering Institute of Canada
Άλλοι συγγραφείς:	Jacobs, John M, Hendricks, Robert S
Μορφή:	Βιβλίο
Γλώσσα:	English
Έκδοση:	Littleton, CO. : Society of Mining Engineers, Inc., c1987
Θέματα:	Tunneling Excavation Underground construction