@INPROCEEDINGS {HAHN:77, title = {Cassava breeding at IITA: proceedings of the Third Symposium of the International Society for Tropical Root Crops held at IITA, Ibadan, Nigeria, 2-9 December, 1973}, author = {Hahn, S. K. and Howland, A. K. and Terry, E. R. }, booktitle = {Proceedings of the Third Symposium of the International Society for Tropical Root Crops held at IITA, Ibadan, Nigeria, 2-9 December, 1973}, year = {1977}, month = {December}, pages = {4--10}, }