APA (7th ed.) Citation

McFarland, E. R. (1995). Relation of land use to nitrogen concentration in ground water in the Patuxent River Basin, Maryland. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

McFarland, E. Randolph. Relation of Land Use to Nitrogen Concentration in Ground Water in the Patuxent River Basin, Maryland. Towson, Maryland: U.S. Geological Survey, 1995.

MLA (9th ed.) Citation

McFarland, E. Randolph. Relation of Land Use to Nitrogen Concentration in Ground Water in the Patuxent River Basin, Maryland. U.S. Geological Survey, 1995.