返回Google圖書搜尋

Reports of the Inspectors of Mines of the Anthracite and Bituminous Coal Regions of Pennsylvania, for the Year ...

出版	Edwin K. Meyers, state printer, 1889
URL	http://books.google.com.hk/books?id=XA0KAAAAIAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN