@INPROCEEDINGS {1973b, title = {Problems of rice breeding in West Africa: paper presented at the WARDA Seminar on Rice Breeding and Varietal Improvement, 15th January, 1973}, author = {Abifarin, A. O. }, booktitle = {WARDA Seminar on Rice Breeding and Varietal Improvement, 15-20 January, 1973}, year = {1973}, month = {January}, pages = {1--19}, }