Cita APA (7a ed.)
Cooperation, T. C. f. A. a. R. (1993). Perches help birds to kill pests. Technical Centre for Agricultural and Rural Cooperation.
Cita Chicago Style (17a ed.)
Cooperation, Technical Centre for Agricultural and Rural. Perches Help Birds to Kill Pests. Technical Centre for Agricultural and Rural Cooperation, 1993.
Cita MLA (9a ed.)
Cooperation, Technical Centre for Agricultural and Rural. Perches Help Birds to Kill Pests. Technical Centre for Agricultural and Rural Cooperation, 1993.
Precaución: Estas citas no son 100% exactas.