APA-čujuhus (7. p.)
Steck, F. B. Christopher Columbus and the franciscans / by Francis Borgia Steck.
Chicago-čujuhus (17. p.)
Steck, Francis Borgia. Christopher Columbus and the Franciscans / by Francis Borgia Steck.
MLA-čujuhus (9. p.)
Steck, Francis Borgia. Christopher Columbus and the Franciscans / by Francis Borgia Steck.
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