APA (7th ed.) Citation

Rupert, M., & Plummer, L. N. (2004). Ground-water age and flow at Great Sand Dunes National Monument, south-central Colorado. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Rupert, Michael, and L. Niel Plummer. Ground-water Age and Flow at Great Sand Dunes National Monument, South-central Colorado. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2004.

MLA (9th ed.) Citation

Rupert, Michael, and L. Niel Plummer. Ground-water Age and Flow at Great Sand Dunes National Monument, South-central Colorado. U.S. Dept. of the Interior, U.S. Geological Survey, 2004.