@INBOOK {FERY:1997, title = {Cowpea genetics: a review of the recent literature}, author = {Fery, R. L. and Singh, B. }, year = {1997}, type = {Advances in cowpea research}, pages = {13--29}, chapter = {2}, publisher = {International Institute of Tropical Agriculture (IITA); Japan International Research Center for Agricultural Sciences (JIRCAS)}, address = {Ibadan, Nigeria}, }