APA (7th ed.) Citation

Graves, R. P. (1992). Geohydrology of the Aguirre and Pozo Hondo areas, southern Puerto Rico. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Graves, Robert P. Geohydrology of the Aguirre and Pozo Hondo Areas, Southern Puerto Rico. San Juan, Puerto Rico: U.S. Geological Survey, 1992.

MLA (9th ed.) Citation

Graves, Robert P. Geohydrology of the Aguirre and Pozo Hondo Areas, Southern Puerto Rico. U.S. Geological Survey, 1992.

Warning: These citations may not always be 100% accurate.