Books by Rick D. Halvorsen:
Books in the extended shelves:
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Halvorsen, Rick D.: Monitoring the performance of private service contractors (Federal Transit Administration, Office of Technical Assistance and Safety ;, 1992), also by Massachusetts Institute of Technology. Center for Transportation Studies and United States. Federal Transit Administration. Office of Technical Assistance and Safety (page images at HathiTrust)
Find more by Rick D. Halvorsen at your library, or elsewhere.