Cite
MLA (8th Edition)
Flood of October 6-7, 1985, Puerto Rico. U.S. Department of the Interior, U.S. Geological Survey, 1997.
APA (7th Edition)
Flood of October 6-7, 1985, Puerto Rico. (1997). U.S. Department of the Interior, U.S. Geological Survey.
Chicago (17th Edition)
“Flood of October 6-7, 1985, Puerto Rico.” Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 1997.