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    Title :

    Traffic surveys by post cards : presented at the thirtieth annual meeting 1951



    Conference:

    Annual meeting. Highway Research Board ; 30 ; 1951 ; Washington, DC Annual meeting. Highway Research Board ; 30 (Washington, DC) : 1951.



    Publication date :

    1951


    Size :

    II, 30 S.


    Remarks:

    graph. Darst., Kt.


    Type of media :

    Conference Proceedings


    Type of material :

    Print


    Language :

    English



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