@INBOOK {NG:1997c, title = {Cowpea}, author = {Ng, N. Q. and Singh, B. }, editor = {Fuccillo, D. and Sears, L. and Stapleton, P. }, year = {1997}, type = {Biodiversity in trust: Conservation and use of plabt genetic resources in CGIAR Centres}, pages = {82--99}, publisher = {Cambridge University Press}, address = {Cambridge, UK}, }