@INBOOK {PADULOSI:1990f, title = {Wild Vigna species in Africa: their collection and potential utilization}, author = {Padulosi, S. and Ng, N. Q. }, year = {1990}, type = {Cowpea genetic resources, edited by N.Q, Ng and L.M. Monti}, pages = {58--77}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, }