Não informado. (1975). Wilhelm Roux's Archives of Developmental Biology. Springer.
Lua i Stíl Chicago (17ú heag.)Não informado. Wilhelm Roux's Archives of Developmental Biology. Berlin: Springer, 1975.
Lua MLA (8ú heag.)Não informado. Wilhelm Roux's Archives of Developmental Biology. Springer, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.