Não informado. (1968). Ghana Journal of Agricultural Sciences. Council of Scientific & Industrial Research.
Chicago-Zitierstil (17. Ausg.)Não informado. Ghana Journal of Agricultural Sciences. Accra: Council of Scientific & Industrial Research, 1968.
MLA-Zitierstil (8. Ausg.)Não informado. Ghana Journal of Agricultural Sciences. Council of Scientific & Industrial Research, 1968.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.