Cita APA (7th ed.)
Porti, A. D. Explorers: The Most Exciting Voyages of Discovery : From the African Expeditions to the Lunar Landing. Firefly Books.
Cita Chicago (17th ed.)
Porti, Andrea De. Explorers: The Most Exciting Voyages of Discovery : From the African Expeditions to the Lunar Landing. Buffalo, EUA: Firefly Books.
Cita MLA (9th ed.)
Porti, Andrea De. Explorers: The Most Exciting Voyages of Discovery : From the African Expeditions to the Lunar Landing. Firefly Books.
Atenció: Aquestes cites poden no estar 100% correctes.