Michigan. State Highway Department. (1937). Road map of Houghton County. Michigan State Highway Dept..
Chicago Style (17th ed.) CitationMichigan. State Highway Department. Road Map of Houghton County. Lansing: Michigan State Highway Dept., 1937.
MLA (8th ed.) CitationMichigan. State Highway Department. Road Map of Houghton County. Michigan State Highway Dept., 1937.
Warning: These citations may not always be 100% accurate.