Sportsman's County Map Service & Phelps, L. R. (1951). Ontonagon County. Sportsman's County Map Service.
Chicago Style (17th ed.) CitationSportsman's County Map Service and Lee R. Phelps. Ontonagon County. Detroit, Mich.: Sportsman's County Map Service, 1951.
MLA (9th ed.) CitationSportsman's County Map Service and Lee R. Phelps. Ontonagon County. Sportsman's County Map Service, 1951.
Warning: These citations may not always be 100% accurate.