On a New Species of Ptarmigan
Gould, John 1804-1881
Article
1858
Proceedings of the Zoological Society of London
354--355
BioStor
English
London Academic Press, [etc.] 1833-1965
BioStor: https://biostor.org/reference/109326 DOI: https://doi.org/10.1111/j.1469-7998.1858.tb06389.x