Flood-prevention Projects at Pennsylvania Anthracite Mines S. H. Ash Published: 1946 Total Pages: 92 Get eBook
Mine Water Control Program, Anthracite Region of Pennsylvania Published: 1962 Total Pages: 78 Get eBook
Surface-water Seepage Into Anthracite Mines in the Wyoming Basin, Northern Field Charles Thomas Holland Published: 1953 Total Pages: 612 Get eBook
Hearings United States. Congress. House. Committee on Appropriations Published: 1948 Total Pages: 1356 Get eBook
Interior Department Appropriation Bill for 1949 United States. Congress. House. Committee on Appropriations. Subcommittee on Interior Department Published: 1948 Total Pages: 1330 Get eBook
Interior Department Appropriation Bill for 1949 United States. Congress. House. Committee on Appropriations Published: 1948 Total Pages: 1332 Get eBook
