APA (7th ed.) Citation

Rupert, M., & Plummer, L. N. (2004). Ground-water flow direction, water quality, recharge sources, and age, Great Sand Dunes National Monument, south-central Colorado, 2000-2001. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Rupert, Michael, and L. Niel Plummer. Ground-water Flow Direction, Water Quality, Recharge Sources, and Age, Great Sand Dunes National Monument, South-central Colorado, 2000-2001. 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 Flow Direction, Water Quality, Recharge Sources, and Age, Great Sand Dunes National Monument, South-central Colorado, 2000-2001. U.S. Dept. of the Interior, U.S. Geological Survey, 2004.