@INPROCEEDINGS {STEELE: 1985, title = {Cowpea (Vigna unguiculata (L) Walp.)}, author = {Steele, W. M. and Allen, D. J. and Summerfield, R. }, editor = {Summerfield, R. and Roberts, E. H. }, booktitle = {Grain Legume Crops}, year = {1985}, pages = {520--583}, }