APA citiranje

Sperry Smith, S. (1997). Early childhood mathematics. Boston: Allyn and Bacon.

Trích dẫn kiểu Chicago

Sperry Smith, Susan. Early Childhood Mathematics. Boston: Allyn and Bacon, 1997.

MLA citiranje

Sperry Smith, Susan. Early Childhood Mathematics. Boston: Allyn and Bacon, 1997.

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