Não informado. (1967). Journal of Differential Geometry. American Mathematical Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Differential Geometry. Bethlehem, Pa: American Mathematical Society, 1967.
Lua MLA (8ú heag.)Não informado. Journal of Differential Geometry. American Mathematical Society, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.