APA (7th ed.) Citation

Berryhill, H. L., Jr. (1960). Geology of the Central Aguirre quadrangle, Puerto Rico. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Berryhill, Henry L., Jr. Geology of the Central Aguirre Quadrangle, Puerto Rico. Washington, D.C.: U.S. Geological Survey, 1960.

MLA (9th ed.) Citation

Berryhill, Henry L., Jr. Geology of the Central Aguirre Quadrangle, Puerto Rico. U.S. Geological Survey, 1960.