登入
選單
返回
Google圖書搜尋
Bit Gage V. Drilling Speed
McHenry Mosier
Wing G. Agnew
出版
U.S. Department of the Interior, Bureau of Mines
, 1939
URL
http://books.google.com.hk/books?id=vkq9fqG0x48C&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN