APA
Lele U. J., Van de Walle N. & Ghetibouo M. (1989). Cotton in Africa. Washington, D.C: World Bank.
Chicago
Lele Uma J, Van de Walle Nicolas and Ghetibouo Mathumin. 1989. Cotton in Africa. Washington, D.C: World Bank.
Harvard
Lele U. J., Van de Walle N. and Ghetibouo M. (1989). Cotton in Africa. Washington, D.C: World Bank.
MLA
Lele Uma J, Van de Walle Nicolas and Ghetibouo Mathumin. Cotton in Africa. Washington, D.C: World Bank. 1989.