APA (7. basım) Alıntı

Percentage Distribution of 6- to 12-year-olds, 1972-97. US Department of Education.

Chicago Style (17. basım) Atıf

Percentage Distribution of 6- to 12-year-olds, 1972-97. US Department of Education.

MLA (9th ed.) Atıf

Percentage Distribution of 6- to 12-year-olds, 1972-97. US Department of Education.

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