@MISC {AMAZA:2007a,
title = {Production efficiency of soybean farmers in the Guinea savannas of West Africa: empirical evidence from Nigeria: poster paper presented at the International Farm Manegement Association Congress held at University College Cork, Ireland, 15-20 July 2007},
author = {Amaza, P. and Ogundari, K. },
year = {2007},
howpublished = {Poster},
note = {Available on CDROM},
}