@PROCEEDINGS {JUO:1979d,
title = {Capability and constraints in the ultisols and oxisols for crop production in West Africa},
author = {Juo, A. S. R. and Kang, B. T. },
booktitle = {First Annual Research Conference, IITA, Ibadan , October 15-19, 1979},
year = {1979},
month = {October},
}