@PROCEEDINGS {WILSON:1978c, title = {The Improvement of Yam (Dioscorea spp. through Breeding}, author = {Wilson, J. E. }, booktitle = {Paper presented at the IITA/IDRC/MANR/RRS Regional Root and Tuber Improvement Workshop. August 28 - 30, 1978}, year = {1978}, month = {August}, address = {Freetown, Sierra Leone}, note = {RTB; Root and Tuber; Yam}, }