Moise, E. E., & Downs, F. L. (1975). Geometry. Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Moise, Edwin E., agus Floyd L. Downs. Geometry. Reading: Addison-Wesley, 1975.
Lua MLA (9ú heag.)Moise, Edwin E., agus Floyd L. Downs. Geometry. Addison-Wesley, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.