Schweitzer, P. N., & Geological Survey. (1995). Monthly average polar sea-ice concentration. U.S. Geological Survey.
Chicago Style (17th ed.) CitationSchweitzer, Peter N., and Geological Survey. Monthly Average Polar Sea-ice Concentration. [Reston, Va.]: U.S. Geological Survey, 1995.
MLA (8th ed.) CitationSchweitzer, Peter N., and Geological Survey. Monthly Average Polar Sea-ice Concentration. U.S. Geological Survey, 1995.
Warning: These citations may not always be 100% accurate.