登入選單

返回Google圖書搜尋

Optimization of Underground Mining

Virginia Polytechnic Institute. Department of Mining EngineeringL. J. Prelaz

出版	Office of Coal Research, Department of the Interior, 1964
URL	http://books.google.com.hk/books?id=4Sh-wlL6uvUC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN