Houghton Mifflin Company. (2002). Houghton Mifflin mathematics. Houghton Mifflin.
Chicagoスタイル(17版)引用形式Houghton Mifflin Company. Houghton Mifflin Mathematics. Boston: Houghton Mifflin, 2002.
MLA(8版)引用形式Houghton Mifflin Company. Houghton Mifflin Mathematics. Houghton Mifflin, 2002.
警告: この引用は必ずしも正確ではありません.