Não informado. (1927). Journal of Paleontology. Society of Economic Paleontologists and Mineralogists.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Paleontology. Tulsa, Okla: Society of Economic Paleontologists and Mineralogists, 1927.
Lua MLA (8ú heag.)Não informado. Journal of Paleontology. Society of Economic Paleontologists and Mineralogists, 1927.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.