Alaexander, D. C. (1999). Elementary geometry for college students (2nd ed.). Houghton Mifflin.
Chicago (17e ed.) BronvermeldingAlaexander, Daniel C. Elementary Geometry for College Students. 2nd ed. Boston, MA: Houghton Mifflin, 1999.
MLA (9e ed.) BronvermeldingAlaexander, Daniel C. Elementary Geometry for College Students. 2nd ed. Houghton Mifflin, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.