APA (7th ed.) Citation

Curtis, W. R. (1977). Surface mining and the flood of April 1977. Dept. of Agriculture, Forest Service, North eastern Forest Experiment Station.

Chicago Style (17th ed.) Citation

Curtis, Willie R. Surface Mining and the Flood of April 1977. Upper Darby, Pa.: Dept. of Agriculture, Forest Service, North eastern Forest Experiment Station, 1977.

MLA (9th ed.) Citation

Curtis, Willie R. Surface Mining and the Flood of April 1977. Dept. of Agriculture, Forest Service, North eastern Forest Experiment Station, 1977.