Ohio Department of Highways (1936). Official Highway Map of Ohio(PDF) (Map). 1:760,320. Columbus: Ohio Department of Highways. OCLC5673562. Retrieved 2014-03-28.
Ohio Department of Transportation (1996). Official Ohio Transportation Map(PDF) (Map) (1996–1997 ed.). c. 1:696,960. Columbus: Ohio Department of Transportation. OCLC5673562, 31884639. Retrieved 2014-03-28.
Ohio Department of Transportation (July 1997). Official Ohio Transportation Map(PDF) (Map) (1997–1998 ed.). c. 1:696,960. Columbus: Ohio Department of Transportation. OCLC5673562, 31884639. Retrieved 2014-03-28.
Ohio Department of Transportation (1996). Official Ohio Transportation Map(PDF) (Map) (1996–1997 ed.). c. 1:696,960. Columbus: Ohio Department of Transportation. OCLC5673562, 31884639. Retrieved 2014-03-28.
Ohio Department of Transportation (July 1997). Official Ohio Transportation Map(PDF) (Map) (1997–1998 ed.). c. 1:696,960. Columbus: Ohio Department of Transportation. OCLC5673562, 31884639. Retrieved 2014-03-28.
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Ohio Department of Highways (1936). Official Highway Map of Ohio(PDF) (Map). 1:760,320. Columbus: Ohio Department of Highways. OCLC5673562. Retrieved 2014-03-28.