APA (7th ed.) Citation

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

MLA (9th 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.