登入
選單
返回
Google圖書搜尋
Longhole Retreat Mining of a Steeply Pitching Anthracite Bed
Andrew Allan
J. B. Zadra
John B. Gayle
John W. Taber
Joseph J. Wallace
Nils A. Eilertsen
Vernon C. Davis
Wilbur A. Haley
William J. Kroll
William L. Crentz
Abraham L. Engel
H. Stuart Auvil
James J. Dowd
James W. Miller
Russell S. Davis
W. R. Carmody
Albert Wilbur Schlechten
E. S. Shedd
Louis A. Turnbull
其他書名
Anthracite Mechanical-mining Investigations : Progress Report 7
出版
U.S. Department of the Interior, Bureau of Mines
, 1952
URL
http://books.google.com.hk/books?id=B895zQEACAAJ&hl=&source=gbs_api