APA (7th ed.) Citation

Geological Survey (U.S.). (1999). Discharge of herbicides from the Mississippi River basin to the Gulf of Mexico, 1991-97. [U.S. Dept. of the Interior, U.S. Geological Survey].

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). Discharge of Herbicides from the Mississippi River Basin to the Gulf of Mexico, 1991-97. [Reston, Va.]: [U.S. Dept. of the Interior, U.S. Geological Survey], 1999.

MLA (9th ed.) Citation

Geological Survey (U.S.). Discharge of Herbicides from the Mississippi River Basin to the Gulf of Mexico, 1991-97. [U.S. Dept. of the Interior, U.S. Geological Survey], 1999.