University of Oregon. Bureau of Municipal Research and Service. (1958). Population of Oregon cities, counties, and metropolitan areas, 1850 to 1957: A compilation of census counts and estimates in Oregon. University of Oregon, Bureau of Municipal Research and Service.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)University of Oregon. Bureau of Municipal Research and Service. Population of Oregon Cities, Counties, and Metropolitan Areas, 1850 to 1957: A Compilation of Census Counts and Estimates in Oregon. Eugene: University of Oregon, Bureau of Municipal Research and Service, 1958.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)University of Oregon. Bureau of Municipal Research and Service. Population of Oregon Cities, Counties, and Metropolitan Areas, 1850 to 1957: A Compilation of Census Counts and Estimates in Oregon. University of Oregon, Bureau of Municipal Research and Service, 1958.