(1993). The real projective plane / H.S.M. Coxeter ; with an appendix for Mathematica by George Beck.
Chicago-referens (17:e uppl.)The Real Projective Plane / H.S.M. Coxeter ; with an Appendix for Mathematica by George Beck. 1993.
MLA-referens (9:e uppl.)The Real Projective Plane / H.S.M. Coxeter ; with an Appendix for Mathematica by George Beck. 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.