Tesar, J. E. (1992). Food and water: Threats, shortages, and solutions. Facts on File.
Lua i Stíl Chicago (17ú heag.)Tesar, Jenny E. Food and Water: Threats, Shortages, and Solutions. New York: Facts on File, 1992.
Lua MLA (9ú heag.)Tesar, Jenny E. Food and Water: Threats, Shortages, and Solutions. Facts on File, 1992.
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