Não informado. (1967). Special Papers in Palaeontology. Palaeontological Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Special Papers in Palaeontology. London: Palaeontological Association, 1967.
Lua MLA (8ú heag.)Não informado. Special Papers in Palaeontology. Palaeontological Association, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.