APA (7th ed.) Citation

Gerhart, J. M., & Lazorchick, G. J. (1988). Evaluation of the ground-water resources of the lower Susquehanna River basin, Pennsylvania and Maryland. U.S. Dept. of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Gerhart, James M., and George J. Lazorchick. Evaluation of the Ground-water Resources of the Lower Susquehanna River Basin, Pennsylvania and Maryland. [Reston, Va.]: U.S. Dept. of the Interior, Geological Survey, 1988.

MLA (9th ed.) Citation

Gerhart, James M., and George J. Lazorchick. Evaluation of the Ground-water Resources of the Lower Susquehanna River Basin, Pennsylvania and Maryland. U.S. Dept. of the Interior, Geological Survey, 1988.