@INBOOK {EBERHART:1991, title = {A comprehensive breeding system for maize improvement in Africa}, author = {Eberhart, S. A. and Kim, S. K. and Mareck, J. H. and Darrah, L. and Goodman, M. }, year = {1991}, type = {Crop genetic resources of Africa, Vol. II, edited by N.Q. Ng, P, Perrino, F. Attere, H. Zedan}, pages = {175--193}, publisher = {International Institute of Tropical Agriculture (IITA); IBPGR; UNEP; CNR}, address = {Ibadan, Nigeria}, }