Lorenz, D. L., & Stark, J. R. (1990). Simulation of ground-water flow in the St. Peter aquifer in an area contaminated by coal-tar derivatives, St. Louis Park, Minnesota. U.S. Geological Survey.
Chicago Style (17th ed.) CitationLorenz, D. L., and James R. Stark. Simulation of Ground-water Flow in the St. Peter Aquifer in an Area Contaminated by Coal-tar Derivatives, St. Louis Park, Minnesota. St. Paul, Minnesota: U.S. Geological Survey, 1990.
MLA (9th ed.) CitationLorenz, D. L., and James R. Stark. Simulation of Ground-water Flow in the St. Peter Aquifer in an Area Contaminated by Coal-tar Derivatives, St. Louis Park, Minnesota. U.S. Geological Survey, 1990.
Warning: These citations may not always be 100% accurate.