Clark, J. R., & Smith, R. R. Plane geometry: A self-teaching course based on modern school geometry. World Book.
Chicago-Zitierstil (17. Ausg.)Clark, John R., und Rolland R. Smith. Plane Geometry: A Self-teaching Course Based on Modern School Geometry. Madison, Wis: World Book.
MLA-Zitierstil (9. Ausg.)Clark, John R., und Rolland R. Smith. Plane Geometry: A Self-teaching Course Based on Modern School Geometry. World Book.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.