Bradley, J. T., & Guthrie, J. A. (1953). An analysis of convention business in Washington State: A sample survey of five cities. State College of Washington, School of Economics and Business, Bureau of Economic Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bradley, Joseph Thomas, و John Alexander Guthrie. An Analysis of Convention Business in Washington State: A Sample Survey of Five Cities. Pullman: State College of Washington, School of Economics and Business, Bureau of Economic Research, 1953.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Bradley, Joseph Thomas, و John Alexander Guthrie. An Analysis of Convention Business in Washington State: A Sample Survey of Five Cities. State College of Washington, School of Economics and Business, Bureau of Economic Research, 1953.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.