Smith, D. E. (1900). The teaching of elementary mathematics QA11. Macmillan.
Chicagoスタイル(17版)引用形式Smith, David Eugene. The Teaching of Elementary Mathematics QA11. New York: Macmillan, 1900.
MLA(9版)引用形式Smith, David Eugene. The Teaching of Elementary Mathematics QA11. Macmillan, 1900.
警告: この引用は必ずしも正確ではありません.