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Lua i Stíl Chicago (17ú heag.)ebrary, Inc, Simon Naylor, agus James R. Ryan. New Spaces of Exploration: Geographies of Discovery in the Twentieth Century. London: I. B. Tauris, 2010.
Lua MLA (9ú heag.)ebrary, Inc, et al. New Spaces of Exploration: Geographies of Discovery in the Twentieth Century. I. B. Tauris, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.