SCHOLASTIC EDUCATION. (2004). 100 MATH ACTIVITIES KIDS NEED TO DO BY 1st GRADE. SCHOLASTIC INS.
Chicago-viite (17. p.)SCHOLASTIC EDUCATION. 100 MATH ACTIVITIES KIDS NEED TO DO BY 1st GRADE. USA: SCHOLASTIC INS, 2004.
MLA-viite (9. p.)SCHOLASTIC EDUCATION. 100 MATH ACTIVITIES KIDS NEED TO DO BY 1st GRADE. SCHOLASTIC INS, 2004.
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