Hart, W. W. (1950). Plane geometry. D. C. Health and Company.
Chicagoスタイル(17版)引用形式Hart, Walter W. Plane Geometry. Boston: D. C. Health and Company, 1950.
MLA(9版)引用形式Hart, Walter W. Plane Geometry. D. C. Health and Company, 1950.
警告: この引用は必ずしも正確ではありません.