Flores, G. (1953). Working and playing with numbers: Grade IV. Laidlaw Brothers.
Chicagoスタイル(17版)引用形式Flores, Gerardo. Working and Playing with Numbers: Grade IV. Chicago, Ill: Laidlaw Brothers, 1953.
MLA(9版)引用形式Flores, Gerardo. Working and Playing with Numbers: Grade IV. Laidlaw Brothers, 1953.
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