Welchons, A. M. (1944). Solid Geometry: A Self-Teaching Course. Ginn.
Chicagoスタイル(17版)引用形式Welchons, A. M. Solid Geometry: A Self-Teaching Course. Washington: Ginn, 1944.
MLA(9版)引用形式Welchons, A. M. Solid Geometry: A Self-Teaching Course. Ginn, 1944.
警告: この引用は必ずしも正確ではありません.