SCHOLASTIC EDUCATION. (2004). 100 MATH ACTIVITIES KIDS NEED TO DO BY 1st GRADE. SCHOLASTIC INS.
Chicago-referens (17:e uppl.)SCHOLASTIC EDUCATION. 100 MATH ACTIVITIES KIDS NEED TO DO BY 1st GRADE. USA: SCHOLASTIC INS, 2004.
MLA-referens (9:e uppl.)SCHOLASTIC EDUCATION. 100 MATH ACTIVITIES KIDS NEED TO DO BY 1st GRADE. SCHOLASTIC INS, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.