International Transport Forum, ProQuest (Firm), & Organisation for Economic Co-operation and Development. (2011). Trends in the transport sector: 1970-2009. OECD.
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Chicago Style (17th ed.) Zitazioa
International Transport Forum, ProQuest (Firm), eta Organisation for Economic Co-operation and Development. Trends in the Transport Sector: 1970-2009. Paris: OECD, 2011.
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MLA (9th ed.) Zitazioa
International Transport Forum, et al. Trends in the Transport Sector: 1970-2009. OECD, 2011.
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