APA (7th ed.) Citation

Bull, A. (2003). Traffic congestion: The problem and how to deal with it (1. ed.). United Nations.

Chicago Style (17th ed.) Citation

Bull, Alberto. Traffic Congestion: The Problem and How to Deal with It. 1. ed. Santiago, Chile: United Nations, 2003.

MLA (9th ed.) Citation

Bull, Alberto. Traffic Congestion: The Problem and How to Deal with It. 1. ed. United Nations, 2003.