Hirshhorn, R. (1992). The ownership and organization of transportation infrastructure: Roads and airports. Minister of Supply and Services Canada.
Chicago-Zitierstil (17. Ausg.)Hirshhorn, Ron. The Ownership and Organization of Transportation Infrastructure: Roads and Airports. [Ottawa]: Minister of Supply and Services Canada, 1992.
MLA-Zitierstil (9. Ausg.)Hirshhorn, Ron. The Ownership and Organization of Transportation Infrastructure: Roads and Airports. Minister of Supply and Services Canada, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.