Não informado. Racing Pigeon Bulletin. International Federation of American Homing Pigeon Fanciers.
Chicagoスタイル(17版)引用形式Não informado. Racing Pigeon Bulletin. Centerville, Ohio: International Federation of American Homing Pigeon Fanciers.
MLA(8版)引用形式Não informado. Racing Pigeon Bulletin. International Federation of American Homing Pigeon Fanciers.
警告: この引用は必ずしも正確ではありません.