Kolb, R. (2009). Martin Luther: Confessor of the faith. Oxford University Press.
Chicago-čujuhus (17. p.)Kolb, Robert. Martin Luther: Confessor of the Faith. Oxford ; New York: Oxford University Press, 2009.
MLA-čujuhus (9. p.)Kolb, Robert. Martin Luther: Confessor of the Faith. Oxford University Press, 2009.
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