Não informado. (1867). Report of the Commissioner of Education. Bureau of Education.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Report of the Commissioner of Education. Washington: Bureau of Education, 1867.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Report of the Commissioner of Education. Bureau of Education, 1867.
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