@INBOOK {SINGH:1997d, title = {Advances in research on cowpea Striga and Alectra}, author = {Singh, B. and Emechebe, A. }, editor = {Singh, B. and Mohan-Raj, D. R. and Dashiell, K. and Jackai, L. }, year = {1997}, type = {Advances in cowpea research}, pages = {215--224}, publisher = {International Institute of Tropical Agriculture (IITA), Japan International Research Center for Agricultural Sciences (JIRCAS)}, address = {IITA, Ibadan, Nigeria}, }