@ARTICLE {NANGJU:1976a,
title = {Effect of harvest frequency on yield, quality and variability of indeterminate cowpea seed},
author = {Nangju, D. },
journal = {The Journal of Agricultural Science},
year = {1976},
volume = {87},
number = {1},
pages = {225--235},
issn = {0021-8596},
}