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Smithson, James Brady ,  Trutmann, P. ,  [African Bean Pathology Workshop (1, 1987, Kigali, Rwanda). Proceedings] ,  African Bean Pathology Workshop (1, 1987, Kigali, Rwanda). Proceedings

Smithson, James Brady ,  Gridley, Howard E. ,  Youngquist, W ,  [Second African bean yield and adaptation nursery (AFBYAN II)] ,  Second African bean yield and adaptation nursery (AFBYAN II)