Links:
[1] mailto:trans@northwestern.edu
[2] http://www.library.northwestern.edu/libraries-collections/evanston-campus/transportation-library
[3] http://www.library.northwestern.edu/libraries-collections/evanston-campus/transportation-library/collection/ohare50/research-materials-1
[4] http://www.library.northwestern.edu/libraries-collections/evanston-campus/transportation-library/collection/ohare50/research-materials-0
[5] http://www.library.northwestern.edu/libraries-collections/evanston-campus/transportation-library/collection/ohare50/acknowledgements
[6] http://www.library.northwestern.edu/libraries-collections/evanston-campus/transportation-library/collection/ohare50
[7] http://www.library.northwestern.edu/libraries-collections/evanston-campus/transportation-library/collection/ohare50/research-materials
[8] http://www.library.northwestern.edu/libraries-collections/evanston-campus/transportation-library/collection/ohare50/the-traveler
[9] http://www.library.northwestern.edu/libraries-collections/evanston-campus/transportation-library/collection/ohare50/oddities
[10] http://www.library.northwestern.edu/libraries-collections/evanston-campus/transportation-library/collection/ohare50/research-materials-2