Morris, M. L. (2007). Fertilizer use in African agriculture: Lessons learned and good practice guidelines. World Bank.
Παραπομπή σε μορφή Chicago (17η εκδ.)Morris, Michael L. Fertilizer Use in African Agriculture: Lessons Learned and Good Practice Guidelines. Washington, DC: World Bank, 2007.
Παραπομπή σε μορφή MLA (9th εκδ.)Morris, Michael L. Fertilizer Use in African Agriculture: Lessons Learned and Good Practice Guidelines. World Bank, 2007.