APA (7th ed.) Citation

Ward, J. R. (1987). Surface-water quality in Pequea Creek Basin, Pennsylvania, 1977-79. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Ward, Janice R. Surface-water Quality in Pequea Creek Basin, Pennsylvania, 1977-79. Harrisburg, Pennsylvania: U.S. Geological Survey, 1987.

MLA (9th ed.) Citation

Ward, Janice R. Surface-water Quality in Pequea Creek Basin, Pennsylvania, 1977-79. U.S. Geological Survey, 1987.

Warning: These citations may not always be 100% accurate.