Hobba, W. A. (1993). Effects of underground mining and mine collapse on the hydrology of selected basins in West Virginia. United States Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Hobba, William A. Effects of Underground Mining and Mine Collapse on the Hydrology of Selected Basins in West Virginia. [Washington, DC]: United States Gov. Print. Off, 1993.
MLA-Zitierstil (9. Ausg.)Hobba, William A. Effects of Underground Mining and Mine Collapse on the Hydrology of Selected Basins in West Virginia. United States Gov. Print. Off, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.