Não informado. (2001). Bio-dynamics. Bio-Dynamic Farming and Gardening Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Bio-dynamics. Phoenixville, Pa: Bio-Dynamic Farming and Gardening Association, 2001.
Lua MLA (8ú heag.)Não informado. Bio-dynamics. Bio-Dynamic Farming and Gardening Association, 2001.
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