MLA (8th Edition)
Elevation of the Water-Table Surface for the Alluvial Aquifer and Hydrologic Conditions In the Santa Isabel-Juana Diaz Area, Puerto Rico, March 1986. Department of the Interior, U.S. Geological Survey, 1987.
APA (7th Edition)
Elevation of the water-table surface for the alluvial aquifer and hydrologic conditions in the Santa Isabel-Juana Diaz area, Puerto Rico, March 1986. (1987). Department of the Interior, U.S. Geological Survey.