Washington State Association of County Commissioners. Convention, Washington State Association of County Engineers. Convention, & Washington State Association of County Administrators. Convention. (1952). Convention yearbook. The Associations.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington State Association of County Commissioners. Convention, Washington State Association of County Engineers. Convention, و Washington State Association of County Administrators. Convention. Convention Yearbook. [Olympia, Wash.?]: The Associations, 1952.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Washington State Association of County Commissioners. Convention, et al. Convention Yearbook. The Associations, 1952.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.