Não informado. (1917). The Plant Disease Bulletin. Department of Agriculture, Division of Mycology and Disease Survey.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. The Plant Disease Bulletin. Washington: Department of Agriculture, Division of Mycology and Disease Survey, 1917.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. The Plant Disease Bulletin. Department of Agriculture, Division of Mycology and Disease Survey, 1917.
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