Não informado. (2015). The Plant Disease Bulletin. Department of Agriculture, Division of Mycology and Disease Survey.
Lua i Stíl Chicago (17ú heag.)Não informado. The Plant Disease Bulletin. Washington: Department of Agriculture, Division of Mycology and Disease Survey, 2015.
Lua MLA (8ú heag.)Não informado. The Plant Disease Bulletin. Department of Agriculture, Division of Mycology and Disease Survey, 2015.
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