Alaexander, D. C. (1999). Elementary geometry for college students (2nd ed.). Houghton Mifflin.
Čikaški stil citiranja (17. izdanje)Alaexander, Daniel C. Elementary Geometry for College Students. 2nd ed. Boston, MA: Houghton Mifflin, 1999.
MLA način citiranja (9. izdanje)Alaexander, Daniel C. Elementary Geometry for College Students. 2nd ed. Houghton Mifflin, 1999.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.