@INBOOK {EZUMAH: 1983,
title = {Agronomic considerations of notillage farming},
author = {Ezumah, H. C. },
year = {1983},
type = {No-Tillage Crop Production in the Tropics, Eds. I.O. Akobundu and A.E. Deutsch. corvallis: International plant protection center, Oregon State University},
}