APA (7th ed.) Citation

Cravotta, C. A., III, & Kirby, C. S. (2004). Effects of abandoned coal-mine drainage on streamflow and water quality in the Shamokin Creek Basin, Northumberland and Columbia counties, Pennsylvania, 1999-2001. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Cravotta, Charles A., III, and Carl Scott Kirby. Effects of Abandoned Coal-mine Drainage on Streamflow and Water Quality in the Shamokin Creek Basin, Northumberland and Columbia Counties, Pennsylvania, 1999-2001. New Cumberland, Pa.: U.S. Dept. of the Interior, U.S. Geological Survey, 2004.

MLA (9th ed.) Citation

Cravotta, Charles A., III, and Carl Scott Kirby. Effects of Abandoned Coal-mine Drainage on Streamflow and Water Quality in the Shamokin Creek Basin, Northumberland and Columbia Counties, Pennsylvania, 1999-2001. U.S. Dept. of the Interior, U.S. Geological Survey, 2004.