Williams, R. B. (1991). Coelenterate biology: Recent research on cnidaria and ctenophora. Kluwer Academic Publishers.
Lua i Stíl Chicago (17ú heag.)Williams, R. B. Coelenterate Biology: Recent Research on Cnidaria and Ctenophora. Dordrecht: Kluwer Academic Publishers, 1991.
Lua MLA (9ú heag.)Williams, R. B. Coelenterate Biology: Recent Research on Cnidaria and Ctenophora. Kluwer Academic Publishers, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.