APA (7th ed.) Zitazioa
Sky, T. (2011). The National Road and the difficult path to sustainable national investment. University of Delaware Press.
Chicago Style (17th ed.) Zitazioa
Sky, Theodore. The National Road and the Difficult Path to Sustainable National Investment. Newark: University of Delaware Press, 2011.
MLA (9th ed.) Zitazioa
Sky, Theodore. The National Road and the Difficult Path to Sustainable National Investment. University of Delaware Press, 2011.
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