APA (7th ed.) Citation

Ohio. Department of Transportation. (1993). Official Ohio highway map. Ohio Department of Transportation.

Chicago Style (17th ed.) Citation

Ohio. Department of Transportation. Official Ohio Highway Map. [Ohio]: Ohio Department of Transportation, 1993.

MLA (9th ed.) Citation

Ohio. Department of Transportation. Official Ohio Highway Map. Ohio Department of Transportation, 1993.

Warning: These citations may not always be 100% accurate.