Beck, A. (2012). Competition for Public Transport Services: Institutional Framework and Empirical Evidence of Bus Services in Germany. Physica-Verlag HD. https://doi.org/10.1007/978-3-7908-2802-3
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Beck, Arne. Competition for Public Transport Services: Institutional Framework and Empirical Evidence of Bus Services in Germany. Heidelberg: Physica-Verlag HD, 2012. https://doi.org/10.1007/978-3-7908-2802-3.
MLA -ийн эшлэл (9 дэх хэвлэлт)Beck, Arne. Competition for Public Transport Services: Institutional Framework and Empirical Evidence of Bus Services in Germany. Physica-Verlag HD, 2012. https://doi.org/10.1007/978-3-7908-2802-3.
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