Não informado. (1969). Calcified tissue abstracts. Cambridge Scientific Abstracts.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Calcified Tissue Abstracts. Bethesda, Md: Cambridge Scientific Abstracts, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Calcified Tissue Abstracts. Cambridge Scientific Abstracts, 1969.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.