@INBOOK {AMANS:2001, title = {Promotion of cassava in the semiarid zones of sub-Saharan Africa: status of cassava in northern Nigeria: paper presented at the 7th Triennial symposium of the International society for Tropical Root Crops - Africa Branch, IITA, Ibadan, Nigeria, Oct. 1998}, author = {Amans, E. B. and Tshiunza, M. and Ahmed, B. * and Dixon, A. and Mud, M. and Bokanga, M. }, year = {2001}, type = {Root crops in the 21st century}, pages = {35--42}, publisher = {International Institute of Tropical Agriculture (IITA)}, note = {RTB; Root and Tuber; Cassava}, }