@ARTICLE {SMITH:1993,
title = {Government policy and farm level technologies: the expansion of soybean in Nigeria},
author = {Smith, J. and Woodworth, J. B. and Dashiell, K. },
journal = {Journal of the West African Farming Systems Research Network},
year = {1993},
volume = {3},
number = {1},
pages = {20--32},
}