@BOOK {THEBERGE: 1994, title = {Common African pests and diseases of cassava, yam, sweet potato and cocoyam}, editor = {Theberge, R. L. and Wydra, K. and Yaninek, J. }, year = {1994}, publisher = {International Institute of Tropical Agriculture (IITA); University of Florida; FAIRS CD-ROM Unit}, address = {Gainesville, Florida, USA.}, note = {RTB; Root and Tuber.; Beta version , available on CD-ROM}, keywords = {No}, }