Northwestern University (Evanston, Ill.). Transportation Center. Library.

• A bibliography on police administration
• A reference guide to metropolitan transportation
• Catalog of the Transportation Center Library, Northwestern University
• Catalog of the Transportation Center Library, Northwestern University, Evanston, Illinois
• Doctoral dissertation on transportation 1961-1967 and addendum, December 1967 - July 1968
• Doctoral dissertation on transportation 1969
• Doctoral dissertations on transportation 1961-1967 and addendum
• Urban transportation developments outside the United States
• Urban transportation planning references