Não informado. (2000). Technical bulletin. University of Florida, Agricultural Experiment Station.
Lua i Stíl Chicago (17ú heag.)Não informado. Technical Bulletin. Gainesville, Fla: University of Florida, Agricultural Experiment Station, 2000.
Lua MLA (8ú heag.)Não informado. Technical Bulletin. University of Florida, Agricultural Experiment Station, 2000.
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