APA (7th ed.) Citation

(1960). Geology of the central Aguirre quadrangle, Puerto Rico. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

Geology of the Central Aguirre Quadrangle, Puerto Rico. U.S. Geological Survey, 1960.

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