@INPROCEEDINGS {NANGJU:1980a,
title = {Effect of plant density, spatial arrangement and plant type on weed control in cowpea and soybean: proceedings of a conference held at the IITA, Ibadan, Nigeria, July 3-7, 1978},
author = {Nangju, D. },
booktitle = {Weeds and their control in the humid and subhumid tropics: proceedings of a conference held at the IITA, Ibadan, Nigeria, July 3-7, 1978, edited by I. Okezie},
year = {1980},
pages = {288--299},
}