APA (7th ed.) Citation

Barker, J. L., & Kulp, K. P. (1976). Limnological survey of Sacony Creek Basin, Berks County, Pennsylvania. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Barker, James L., and Kenneth P. Kulp. Limnological Survey of Sacony Creek Basin, Berks County, Pennsylvania. Harrisburg, Pennsylvania: United States Department of the Interior, Geological Survey, 1976.

MLA (9th ed.) Citation

Barker, James L., and Kenneth P. Kulp. Limnological Survey of Sacony Creek Basin, Berks County, Pennsylvania. United States Department of the Interior, Geological Survey, 1976.