Cita APA (7a ed.)
Fielding, D., & Krause, P. (1998). Donkeys. Technical Centre for Agricultural and Rural Cooperation.
Cita Chicago Style (17a ed.)
Fielding, D., y P. Krause. Donkeys. Technical Centre for Agricultural and Rural Cooperation, 1998.
Cita MLA (9a ed.)
Fielding, D., y P. Krause. Donkeys. Technical Centre for Agricultural and Rural Cooperation, 1998.
Precaución: Estas citas no son 100% exactas.