Tesfaye Teklu, Von Braun, J., & Zaki, E. (1991). Drought and famine relationships in Sudan: Policy implications. International Food Policy Research Institute.
Citazione stile Chigago Style (17a edizione)Tesfaye Teklu, Joachim Von Braun, e Elsayed Zaki. Drought and Famine Relationships in Sudan: Policy Implications. Washington, D.C: International Food Policy Research Institute, 1991.
Citatione MLA (9a ed.)Tesfaye Teklu, et al. Drought and Famine Relationships in Sudan: Policy Implications. International Food Policy Research Institute, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.