Cita APA (7a ed.)
Jarvis, L., & Erickson, R. (1986). Livestock herds, overgrazing and range degradation in Zimbabwe: How and why do the herds keep growing? International Livestock Centre for Africa.
Cita Chicago Style (17a ed.)
Jarvis, L., y R. Erickson. Livestock Herds, Overgrazing and Range Degradation in Zimbabwe: How and Why Do the Herds Keep Growing? International Livestock Centre for Africa, 1986.
Cita MLA (9a ed.)
Jarvis, L., y R. Erickson. Livestock Herds, Overgrazing and Range Degradation in Zimbabwe: How and Why Do the Herds Keep Growing? International Livestock Centre for Africa, 1986.
Precaución: Estas citas no son 100% exactas.