Não informado. (1967). Geologica et Palaeontologica. Universitaet Marburg, Geologisch-Palaeontologisches Institut.
Lua i Stíl Chicago (17ú heag.)Não informado. Geologica Et Palaeontologica. Marburg, Alemanha: Universitaet Marburg, Geologisch-Palaeontologisches Institut, 1967.
Lua MLA (8ú heag.)Não informado. Geologica Et Palaeontologica. Universitaet Marburg, Geologisch-Palaeontologisches Institut, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.