Não informado. Racing Pigeon Bulletin. International Federation of American Homing Pigeon Fanciers.
Cita Chicago Style (17a ed.)Não informado. Racing Pigeon Bulletin. Centerville, Ohio: International Federation of American Homing Pigeon Fanciers.
Cita MLA (8a ed.)Não informado. Racing Pigeon Bulletin. International Federation of American Homing Pigeon Fanciers.
Precaución: Estas citas no son 100% exactas.