Davies-Smith, A., Bolke, E. L., & Collins, C. A. (1988). Geohydrology and digital simulation of the ground-water flow system in the Umatilla Plateau and Horse Heaven Hills area, Oregon and Washington. U.S. Geological Survey.
Chicago Style (17th ed.) CitationDavies-Smith, Ann, E. L. Bolke, and C. A. Collins. Geohydrology and Digital Simulation of the Ground-water Flow System in the Umatilla Plateau and Horse Heaven Hills Area, Oregon and Washington. Portland, Oregon: U.S. Geological Survey, 1988.
MLA (9th ed.) CitationDavies-Smith, Ann, et al. Geohydrology and Digital Simulation of the Ground-water Flow System in the Umatilla Plateau and Horse Heaven Hills Area, Oregon and Washington. U.S. Geological Survey, 1988.
Warning: These citations may not always be 100% accurate.