Não informado. (1961). Annual Report of the Bean Improvement Cooperative. Colorado State University, Department of Plant Pathology and Weed Science.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Annual Report of the Bean Improvement Cooperative. Fort Collins, Colo: Colorado State University, Department of Plant Pathology and Weed Science, 1961.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Annual Report of the Bean Improvement Cooperative. Colorado State University, Department of Plant Pathology and Weed Science, 1961.
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