@MISC {WILLIAMS:1975i, title = {Anthracnose of cowpea}, author = {Williams, R. J. }, year = {1975}, month = {February}, howpublished = {Abstract of papers presented at the Third Annual Conference of the Nigerian Society for Plant Protection, Ministry of Agriculture and Natural Resources, Benin City, Nigeria, February 12-14, 1973}, note = {NSPP abstracts; 1972-1975: occasional publication number 1 of the Nigerian Society for Plant Protection}, }