APA (7th ed.) Citation

Adolphson, D. G., Robison, T. M., Seijo, M. A., Geological Survey (U.S.),, & Puerto Rico. (1977). Water resources of the Maunabo Valley, Puerto Rico. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Adolphson, D. G., Tully M. Robison, M. A. Seijo, Geological Survey (U.S.), and Puerto Rico. Water Resources of the Maunabo Valley, Puerto Rico. Ft. Buchanan, Puerto Rico: U.S. Department of the Interior, U.S. Geological Survey, 1977.

MLA (8th ed.) Citation

Adolphson, D. G., et al. Water Resources of the Maunabo Valley, Puerto Rico. U.S. Department of the Interior, U.S. Geological Survey, 1977.