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Traffic Control Devices and Practices to Improve the Safety of Mobile and Short Duration Maintenance Operations
Melisa D. Finley
Brooke R. Ullman
Nada D. Trout
出版
Texas Transportation Institute, Texas A & M University System
, 2004
URL
http://books.google.com.hk/books?id=lw46AQAAMAAJ&hl=&source=gbs_api
