Ajibola, O. (2019). Adding value to the farmer's harvest. Obafemi Awolowo University Press.
Chicago-viite (17. p.)Ajibola, Obafemi. Adding Value to the Farmer's Harvest. Obafemi Awolowo University Press, 2019.
MLA-viite (9. p.)Ajibola, Obafemi. Adding Value to the Farmer's Harvest. Obafemi Awolowo University Press, 2019.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.