APA (7th ed.) Citation

Ferguson, S. A. (2003). Investigation of water quality in the Great Sand Dunes National Monument and Preserve, Saguache County, Colorado, February 1999 through September 2000: Qualifying for outstanding waters designation. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Ferguson, Sheryl A. Investigation of Water Quality in the Great Sand Dunes National Monument and Preserve, Saguache County, Colorado, February 1999 Through September 2000: Qualifying for Outstanding Waters Designation. [Pueblo, Colo.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2003.

MLA (9th ed.) Citation

Ferguson, Sheryl A. Investigation of Water Quality in the Great Sand Dunes National Monument and Preserve, Saguache County, Colorado, February 1999 Through September 2000: Qualifying for Outstanding Waters Designation. U.S. Dept. of the Interior, U.S. Geological Survey, 2003.