@BOOK {SINGH:1997, title = {Advances in cowpea research}, author = {Singh, B. and Mohan-Raj, D. R. and Dashiell, K. and Jackai, L. }, year = {1997}, publisher = {International Institute of Tropical Agriculture (IITA); JIRCAS}, address = {Ibadan, Nigeria}, isbn = {978 131 110 X}, note = {375; File too large to attached, table of content attached}, }