Παραπομπή σε μορφή APA (7η εκδ.)

Beck, A. (2012). Competition for Public Transport Services: Institutional Framework and Empirical Evidence of Bus Services in Germany. Physica-Verlag HD.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Beck, Arne. Competition for Public Transport Services: Institutional Framework and Empirical Evidence of Bus Services in Germany. Heidelberg: Physica-Verlag HD, 2012.

Παραπομπή σε μορφή MLA (8th εκδ.)

Beck, Arne. Competition for Public Transport Services: Institutional Framework and Empirical Evidence of Bus Services in Germany. Physica-Verlag HD, 2012.