Frost, S. E. (1947). Essentials of history of education. Barron's Educational Series.
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Chicago-čujuhus (17. p.)
Frost, S. E. Essentials of History of Education. Woodbury, N.Y.: Barron's Educational Series, 1947.
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MLA-čujuhus (9. p.)
Frost, S. E. Essentials of History of Education. Barron's Educational Series, 1947.
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