Houghton County. Board of County Road Commissioners. (1930). Road map of Houghton County. Board of County Road Commissioners.
Chicago Style (17th ed.) CitationHoughton County. Board of County Road Commissioners. Road Map of Houghton County. [Houghton?]: Board of County Road Commissioners, 1930.
MLA (8th ed.) CitationHoughton County. Board of County Road Commissioners. Road Map of Houghton County. Board of County Road Commissioners, 1930.
Warning: These citations may not always be 100% accurate.