APA-čujuhus (7. p.)
Richards, L. O. (1975). A Theology of christian education. Zondervan.
Chicago-čujuhus (17. p.)
Richards, Lawrence O. A Theology of Christian Education. Grand Rapids: Zondervan, 1975.
MLA-čujuhus (9. p.)
Richards, Lawrence O. A Theology of Christian Education. Zondervan, 1975.
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