Alaexander, D. C. (1999). Elementary geometry for college students (2nd ed.). Houghton Mifflin.
Citace podle Chicago (17th ed.)Alaexander, Daniel C. Elementary Geometry for College Students. 2nd ed. Boston, MA: Houghton Mifflin, 1999.
Citace podle MLA (9th ed.)Alaexander, Daniel C. Elementary Geometry for College Students. 2nd ed. Houghton Mifflin, 1999.
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