Cita APA (7a ed.)
Jahnke, H. E. (1977). The livestock economy of Africa. International Livestock Centre for Africa.
Cita Chicago Style (17a ed.)
Jahnke, Hans E. The Livestock Economy of Africa. International Livestock Centre for Africa, 1977.
Cita MLA (9a ed.)
Jahnke, Hans E. The Livestock Economy of Africa. International Livestock Centre for Africa, 1977.
Precaución: Estas citas no son 100% exactas.