@PROCEEDINGS {EZUMAH:1980c,
title = {Cassava planting systems in Africa},
author = {Ezumah, H. C. and Okigbo, B. },
booktitle = {Cassava cultural practices: proceedings of Workshop held in Salvador, Bahia, Brazil, 18-21 March, 1980},
year = {1980},
pages = {44--49},
note = {RTB; Root and Tuber; Cassava.; 44-49 pp.},
}