APA-ийн эшлэл(7 дахь хэвлэлт)
Columbus, C., & Major, R. H. (2010). Select letters of Christopher Columbus, with other original documents, relating to his four voyages to the New World. Ashgate.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Columbus, Christopher, ба Richard Henry Major. Select Letters of Christopher Columbus, with Other Original Documents, Relating to His Four Voyages to the New World. Farnham, Surrey: Ashgate, 2010.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Columbus, Christopher, ба Richard Henry Major. Select Letters of Christopher Columbus, with Other Original Documents, Relating to His Four Voyages to the New World. Ashgate, 2010.
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