1. On the Question of Saurognathism of the Pici, and other Osteological Notes upon that Group
Shufeldt, Robert Wilson 1850-1934
Article
1891
Proceedings of the Zoological Society of London
122--129
BioStor
English
London Academic Press, [etc.] 1833-1965
BioStor: https://biostor.org/reference/108059 DOI: https://doi.org/10.1111/j.1469-7998.1891.tb06812.x