Williams, R. B. (1991). Coelenterate biology: Recent research on cnidaria and ctenophora. Kluwer Academic Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWilliams, R. B. Coelenterate Biology: Recent Research on Cnidaria and Ctenophora. Dordrecht: Kluwer Academic Publishers, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWilliams, R. B. Coelenterate Biology: Recent Research on Cnidaria and Ctenophora. Kluwer Academic Publishers, 1991.
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