books.google.com - Underground Mining Methods: Engineering Fundamentals and International Case Studies presents the latest principles and techniques in use today. Reflecting the international and diverse nature of the industry, a series of mining case studies is presented covering the commodity range from iron ore to diamonds...http://books.google.com/books/about/Underground_mining_methods.html?id=N9Xpi6a5304C&utm_source=gb-gplus-shareUnderground mining methods
