@INBOOK {NG:1998, title = {Theoretical and practical considerations in the regeneration of cowpea germplasm at IITA}, author = {Ng, N. Q. and Hughes, J. }, editor = {Engels, J and Rao, R. R. }, year = {1998}, type = {Regeneration of seed crops and their wild relatives}, pages = {76--80}, publisher = {IPGRI}, address = {Rome, Italy}, keywords = {No}, }