@INBOOK {SINGH:2002c,
title = {Recent progress in cowpea breeding},
author = {Singh, B. and Ehlers, J. D. and Sharma, B. and Filho, F. },
year = {2002},
type = {Challenges and opportunities for enhancing sustainable cowpea production:},
pages = {22--40},
note = {Proceedings of the World Cowpea Conference III held at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 4-8 September 2000},
}