Cita APA (7a ed.)
Webb, P., von Braun, J., & Teklu, T. (1991). Drought and famine in Ethiopia and Sudan: An ongoing tragedy. Springer.
Cita Chicago Style (17a ed.)
Webb, Patrick, Joachim von Braun, y Tesfaye Teklu. Drought and Famine in Ethiopia and Sudan: An Ongoing Tragedy. Springer, 1991.
Cita MLA (9a ed.)
Webb, Patrick, et al. Drought and Famine in Ethiopia and Sudan: An Ongoing Tragedy. Springer, 1991.
Precaución: Estas citas no son 100% exactas.