(1993). Catalogue of transport studies: Unpublished studies and reports with abstracts by organizations of the United Nations systems.
Chicago-Zitierstil (17. Ausg.)Catalogue of Transport Studies: Unpublished Studies and Reports with Abstracts by Organizations of the United Nations Systems. New York, 1993.
MLA-Zitierstil (9. Ausg.)Catalogue of Transport Studies: Unpublished Studies and Reports with Abstracts by Organizations of the United Nations Systems. 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.