APA

Denver J. M., Geological Survey (U.S.), . (2004). Water quality in the Delmarva Peninsula, Delaware, Maryland, and Virginia, 1999-2001. Reston, VA: U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago

Denver J M, Geological Survey (U.S.), . 2004. Water quality in the Delmarva Peninsula, Delaware, Maryland, and Virginia, 1999-2001. Reston, VA: U.S. Dept. of the Interior, U.S. Geological Survey.

Harvard

Denver J. M., Geological Survey (U.S.), . (2004). Water quality in the Delmarva Peninsula, Delaware, Maryland, and Virginia, 1999-2001. Reston, VA: U.S. Dept. of the Interior, U.S. Geological Survey.

MLA

Denver J M, Geological Survey (U.S.), . Water quality in the Delmarva Peninsula, Delaware, Maryland, and Virginia, 1999-2001. Reston, VA: U.S. Dept. of the Interior, U.S. Geological Survey. 2004.