APA (7th ed.) Citation

Vroblesky, D. A., & Fleck, W. B. (1991). Hydrogeologic framework of the coastal plain of Maryland, Delaware, and the District of Columbia. U.S. Dept. of the Interior, U.S. Geological Survey : Denver, CO.

Chicago Style (17th ed.) Citation

Vroblesky, Don A., and William B. Fleck. Hydrogeologic Framework of the Coastal Plain of Maryland, Delaware, and the District of Columbia. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey : Denver, CO, 1991.

MLA (9th ed.) Citation

Vroblesky, Don A., and William B. Fleck. Hydrogeologic Framework of the Coastal Plain of Maryland, Delaware, and the District of Columbia. U.S. Dept. of the Interior, U.S. Geological Survey : Denver, CO, 1991.