APA (7th ed.) Citation

Geological Survey (U.S.), Puerto Rico. Department of Natural and Environmental Resources, Torres-Sierra, H., Gonzalez, R., & Johnson, K. G. (1997). Flood of October 6-7, 1985, Puerto Rico. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Puerto Rico. Department of Natural and Environmental Resources, Heriberto Torres-Sierra, Ralph Gonzalez, and Karl G. Johnson. Flood of October 6-7, 1985, Puerto Rico. [Reston, Va.]: The Survey, 1997.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Flood of October 6-7, 1985, Puerto Rico. The Survey, 1997.