Geological Survey (U.S.),, Irwin, G. A., Giessner, F. W., & Santa Margarita-San Luis Rey Watershed Planning Agency. Joint Administration Committee. (1971). Maps showing the watersheds of the Santa Margarita and San Luis Rey Rivers, Riverside and San Diego counties, California: Showing ground-water quality data, 1971. U.S. Department of the Interior, Geological Survey, Water Resources Division.
Chicago Style (17th ed.) CitationGeological Survey (U.S.),, G. A. Irwin, F. W. 1934- Giessner, and Santa Margarita-San Luis Rey Watershed Planning Agency. Joint Administration Committee. Maps Showing the Watersheds of the Santa Margarita and San Luis Rey Rivers, Riverside and San Diego Counties, California: Showing Ground-water Quality Data, 1971. Menlo Park, Calif.: U.S. Department of the Interior, Geological Survey, Water Resources Division, 1971.
MLA (8th ed.) CitationGeological Survey (U.S.),, et al. Maps Showing the Watersheds of the Santa Margarita and San Luis Rey Rivers, Riverside and San Diego Counties, California: Showing Ground-water Quality Data, 1971. U.S. Department of the Interior, Geological Survey, Water Resources Division, 1971.