Não informado. (1892). Bulletin of the British Ornithologists Club. British Ornithologists Club.
Chicago-referens (17:e uppl.)Não informado. Bulletin of the British Ornithologists Club. London: British Ornithologists Club, 1892.
MLA-referens (8:e uppl.)Não informado. Bulletin of the British Ornithologists Club. British Ornithologists Club, 1892.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.