Kempf, G. R. (1973). Toroidal embeddings. Berlin: Springer-Verlag.
Lua i Stíl Chicago (17ú heag.)Kempf, George Rushing. Toroidal Embeddings. Berlin: Springer-Verlag, 1973.
Lua MLA (9ú heag.)Kempf, George Rushing. Toroidal Embeddings. Berlin: Springer-Verlag, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.