Não informado. (1990). Journal of the National Cancer Institute Monographs. National Cancer Institute.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the National Cancer Institute Monographs. Bethesda, Md: National Cancer Institute, 1990.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the National Cancer Institute Monographs. National Cancer Institute, 1990.
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