APA (7th ed.) Citation

Nelson, A. E., & Monroe, W. H. (1966). Geology of the Florida quadrangle, Puerto Rico. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Nelson, Arthur E., and Watson Hiner Monroe. Geology of the Florida Quadrangle, Puerto Rico. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1966.

MLA (9th ed.) Citation

Nelson, Arthur E., and Watson Hiner Monroe. Geology of the Florida Quadrangle, Puerto Rico. United States Department of the Interior, Geological Survey, 1966.