Cita APA (7th ed.)

Silverberg, R. (1997). The longest voyage: Circumnavigators in the age of discovery. Ohio University Press.

Cita Chicago (17th ed.)

Silverberg, Robert. The Longest Voyage: Circumnavigators in the Age of Discovery. Athens, OH: Ohio University Press, 1997.

Cita MLA (9th ed.)

Silverberg, Robert. The Longest Voyage: Circumnavigators in the Age of Discovery. Ohio University Press, 1997.