Swanson, R. W., McKelvey, V. E., & Sheldon, R. P. (1953). Progress report on investigations of western phosphate deposits. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationSwanson, Roger Warren, V. E. McKelvey, and Richard Porter Sheldon. Progress Report on Investigations of Western Phosphate Deposits. Washington, D.C.: United States Department of the Interior, Geological Survey, 1953.
MLA (9th ed.) CitationSwanson, Roger Warren, et al. Progress Report on Investigations of Western Phosphate Deposits. United States Department of the Interior, Geological Survey, 1953.
Warning: These citations may not always be 100% accurate.