APA (7th ed.) Citation

Phelan, D. J. (1988). Water levels, chloride concentrations, and pumpage in the coastal aquifers of Delaware and Maryland. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Phelan, Daniel J. Water Levels, Chloride Concentrations, and Pumpage in the Coastal Aquifers of Delaware and Maryland. Dover, Delaware: U.S. Geological Survey, 1988.

MLA (9th ed.) Citation

Phelan, Daniel J. Water Levels, Chloride Concentrations, and Pumpage in the Coastal Aquifers of Delaware and Maryland. U.S. Geological Survey, 1988.