International Transport Forum, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2008). Trends in the transport sector, 1970-2006. OECD/ITF.
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Chicago-čujuhus (17. p.)
International Transport Forum, Organisation for Economic Co-operation and Development, juo ProQuest (Firm). Trends in the Transport Sector, 1970-2006. Paris: OECD/ITF, 2008.
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MLA-čujuhus (9. p.)
International Transport Forum, et al. Trends in the Transport Sector, 1970-2006. OECD/ITF, 2008.
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