APA (7th ed.) Citation

Nonindigenous Aquatic Species Program (U.S.) & Geological Survey (U.S.). (2008). Quagga mussel sightings distribution: NAS--nonindigenous aquatic species. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Nonindigenous Aquatic Species Program (U.S.) and Geological Survey (U.S.). Quagga Mussel Sightings Distribution: NAS--nonindigenous Aquatic Species. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2008.

MLA (9th ed.) Citation

Nonindigenous Aquatic Species Program (U.S.) and Geological Survey (U.S.). Quagga Mussel Sightings Distribution: NAS--nonindigenous Aquatic Species. U.S. Dept. of the Interior, U.S. Geological Survey, 2008.