返回Google圖書搜尋

Carbonizing Properties of a Subbituminous Coal from Puritan Mine, Dacono, Weld County, Colo

出版	U.S. Department of the Interior, Bureau of Mines, 1939
URL	http://books.google.com.hk/books?id=K7tPZu6beN4C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN