Kienel, D. A. (1971). The philosophy of christian school education (Rev ed.). Christian heritage collage.
Chicago-čujuhus (17. p.)Kienel, Dr.Paul A. The Philosophy of Christian School Education. Rev ed. California: Christian heritage collage, 1971.
MLA-čujuhus (9. p.)Kienel, Dr.Paul A. The Philosophy of Christian School Education. Rev ed. Christian heritage collage, 1971.
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