APA (7th ed.) Citation

McIntyre, D. H., & Monroe, W. H. (1971). Geologic map of the Central la Plata quadrangle, Puerto Rico. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

McIntyre, David H., and Watson Hiner Monroe. Geologic Map of the Central La Plata Quadrangle, Puerto Rico. Washington, D.C.: U.S. Geological Survey, 1971.

MLA (9th ed.) Citation

McIntyre, David H., and Watson Hiner Monroe. Geologic Map of the Central La Plata Quadrangle, Puerto Rico. U.S. Geological Survey, 1971.