APA (7th ed.) Citation

Wisconsin. Division of Highways. (1971). Welcome to Wisconsin: 1971 official highway map of Wisconsin. Wisconsin Division of Highways.

Chicago Style (17th ed.) Citation

Wisconsin. Division of Highways. Welcome to Wisconsin: 1971 Official Highway Map of Wisconsin. [Madison, Wis.]: Wisconsin Division of Highways, 1971.

MLA (9th ed.) Citation

Wisconsin. Division of Highways. Welcome to Wisconsin: 1971 Official Highway Map of Wisconsin. Wisconsin Division of Highways, 1971.