APA (7th ed.) Citation

Geological Survey (U.S.) & Focazio, M. J. (1998). Preliminary estimates of residence times and apparent ages of ground water in the Chesapeake Bay watershed, and water-quality data from a survey of springs. U.S. G.P.O. ; U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Michael J. Focazio. Preliminary Estimates of Residence Times and Apparent Ages of Ground Water in the Chesapeake Bay Watershed, and Water-quality Data from a Survey of Springs. [Washington, D.C.?] : Richmond, Va.: U.S. G.P.O. ; U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Michael J. Focazio. Preliminary Estimates of Residence Times and Apparent Ages of Ground Water in the Chesapeake Bay Watershed, and Water-quality Data from a Survey of Springs. U.S. G.P.O. ; U.S. Dept. of the Interior, U.S. Geological Survey, 1998.