Não informado. (1988). Historical Biology: An international journal of paleobiology. Harwood Academic Publishers.
Lua i Stíl Chicago (17ú heag.)Não informado. Historical Biology: An International Journal of Paleobiology. Chur, Suíça: Harwood Academic Publishers, 1988.
Lua MLA (8ú heag.)Não informado. Historical Biology: An International Journal of Paleobiology. Harwood Academic Publishers, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.