Não informado. (1961). Annual Report of the Bean Improvement Cooperative. Colorado State University, Department of Plant Pathology and Weed Science.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Annual Report of the Bean Improvement Cooperative. Fort Collins, Colo: Colorado State University, Department of Plant Pathology and Weed Science, 1961.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Annual Report of the Bean Improvement Cooperative. Colorado State University, Department of Plant Pathology and Weed Science, 1961.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.