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Evaluation of Kentucky's "Buckle Up Kentucky: It's the Law & It's Enforced" Campaign
Kenneth R. Agent
Ronald E. Langley
Eric R. Green
出版
Kentucky Transportation Center, College of Engineering, University of Kentucky
, 2003
URL
http://books.google.com.hk/books?id=iQx8mgEACAAJ&hl=&source=gbs_api