@INBOOK {NG:1991c, title = {Cowpea genepool distribution and crop improvement}, author = {Ng, N. Q. and Padulosi, S. }, year = {1991}, volume = {II}, type = {Crop genetic resources of Africa, Vol. II, edited by N.Q. Ng, P. Perrino, F. Attere, and H. Zedan}, pages = {161--174}, chapter = {3.5}, publisher = {International Institute of Tropical Agriculture (IITA); IBPGR; UNEP; CNR}, address = {Italy}, isbn = {978 131 0634}, }