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41
Administration of highway and transportation agencies "Project 20-24 series.".
Publicado em 1993Livro -
42
Transportation planning, programming, and finance proceedings of a conference.
Publicado em 1993Livro -
43
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44
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45
Transportation planning and air quality proceedings of the national conference
Publicado em 1992Livro -
46
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47
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48
Transportation trends and current research activities a summary of TRB's field visit program.
Publicado em 1988Livro -
49
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50


