APA (7th ed.) Citation

Froelich, A. J., Hack, J. T., & Otton, E. G. (1980). Geologic and hydrologic map reports for land-use planning in the Baltimore-Washington urban area. Dept. of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Froelich, A. J., John T. Hack, and E. G. Otton. Geologic and Hydrologic Map Reports for Land-use Planning in the Baltimore-Washington Urban Area. [Reston, Va.]: Dept. of the Interior, Geological Survey, 1980.

MLA (9th ed.) Citation

Froelich, A. J., et al. Geologic and Hydrologic Map Reports for Land-use Planning in the Baltimore-Washington Urban Area. Dept. of the Interior, Geological Survey, 1980.