Municipal Research and Services Center of Washington & Municipal Research Council (Wash.). (1991). Annexation handbook: Information for cities and towns in Washington State. Municipal Research and Services Center of Washington : Municipal Research Council.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Municipal Research and Services Center of Washington و Municipal Research Council (Wash.). Annexation Handbook: Information for Cities and Towns in Washington State. Kirkland, Wash.: Municipal Research and Services Center of Washington : Municipal Research Council, 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Municipal Research and Services Center of Washington و Municipal Research Council (Wash.). Annexation Handbook: Information for Cities and Towns in Washington State. Municipal Research and Services Center of Washington : Municipal Research Council, 1991.