Tohutoro APA (7th ed.)
Estados Unidos, Departament of Health Education and Welfare. (1964). Digest of educational statistics.
Tohutoru Kātū Chicago (17th ed.)
Estados Unidos, Departament of Health Education and Welfare. Digest of Educational Statistics. 1964.
Tohutoro MLA (9th ed.)
Estados Unidos, Departament of Health Education and Welfare. Digest of Educational Statistics. 1964.
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