Não informado. (2001). Special bulletin of the Montana State Board of Health. Montana State Board of Health.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Special Bulletin of the Montana State Board of Health. Helena, Mont: Montana State Board of Health, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Special Bulletin of the Montana State Board of Health. Montana State Board of Health, 2001.
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