Administrative Report for the (sixth) Kentucky Geological Survey Kentucky Geological Survey Published: 1927 Total Pages: 64 Get eBook
Catalog of Books and Reports in the Bureau of Mines Technical Library, Pittsburgh, Pa United States. Bureau of Mines. Technical Library, Pittsburgh Published: 1968 Total Pages: 778 Get eBook
Transactions of the Kentucky Academy of Science Kentucky Academy of Science Published: 1924 Total Pages: 936 Get eBook