APA-ийн эшлэл(7 дахь хэвлэлт)

Silverberg, R. (2020). The Longest Voyage: Circumnavigators in the Age of Discovery. Ohio University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Silverberg, Robert. The Longest Voyage: Circumnavigators in the Age of Discovery. Athens, OH: Ohio University Press, 2020.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Silverberg, Robert. The Longest Voyage: Circumnavigators in the Age of Discovery. Ohio University Press, 2020.