Washington State Association of County Commissioners & Byers, B. (1957). County government in Washington State: Presented by the association to the high school students of Washington in commemoration of the association's fiftieth annual convention, held in Bellingham, May 30, 31, June 1, 1956.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington State Association of County Commissioners و Barbara Byers. County Government in Washington State: Presented by the Association to the High School Students of Washington in Commemoration of the Association's Fiftieth Annual Convention, Held in Bellingham, May 30, 31, June 1, 1956. [Olympia?, 1957.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Washington State Association of County Commissioners و Barbara Byers. County Government in Washington State: Presented by the Association to the High School Students of Washington in Commemoration of the Association's Fiftieth Annual Convention, Held in Bellingham, May 30, 31, June 1, 1956. 1957.