Books by Steve G. Bokun:
Books in the extended shelves:
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Bokun, Steve G.: Evaluation of experimental railroad-highway grade crossings in Louisiana. Final report. (1986), also by A. F. Moore (page images at HathiTrust)- Bokun, Steve G.: Evaluation of experimental railroad-highway grade crossings in Louisiana. Interim report no. 6. (1983), also by A. F. Moore (page images at HathiTrust)
Find more by Steve G. Bokun at your library, or elsewhere.