Townsend, R. R. (1884). On the geometrical properties of the "atriphthaloid.".
Lua i Stíl Chicago (17ú heag.)Townsend, Richard Rev. On the Geometrical Properties of the "Atriphthaloid.". 1884.
Lua MLA (9ú heag.)Townsend, Richard Rev. On the Geometrical Properties of the "Atriphthaloid.". 1884.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
