Não informado. (1967). Bioresearch index. Biosciences Information Service of Biological Abstracts.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bioresearch Index. Philadelphia, Pa: Biosciences Information Service of Biological Abstracts, 1967.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bioresearch Index. Biosciences Information Service of Biological Abstracts, 1967.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.