1. Bean Project and Biotechnology UnitInternational Center for Tropical Agriculture (CIAT)A.A. 6713CaliColombia
2. Dep. of Plant Breeding, Emerson HallCornell Univ.IthacaNY14853
3. Dep. of Horticulture, 102 Tyson BuildingPennsylvania State Univ.University ParkPA16802