@ARTICLE {MUTSAERS: 1986,
title = {IITA's on-farm/farming systems research program},
author = {Mutsaers, H. J. W. and Palada, M. C. and Vogel, W. A. },
journal = {West African Farming Syetems Research Network Bulleting},
year = {1986},
number = {1},
pages = {4--5},
}