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Indiana State Highway Commission (January 1934). State Highway System of Indiana (Map). 1:600,000. Indianapolis: Indiana State Highway Commission. OCLC63673890 – via Indiana State Library and Historical Bureau.
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worldcat.org
Indiana State Highway Commission (January 1934). State Highway System of Indiana (Map). 1:600,000. Indianapolis: Indiana State Highway Commission. OCLC63673890 – via Indiana State Library and Historical Bureau.
Indiana State Highway Commission (January 1935). State Highway System of Indiana (Map). 1:615,000. Indiana State Highway Commission. OCLC63899341 – via Indiana State Library and Historical Bureau.