BioStor
 | List of Birds Observed on the Upper Toklat River near Mt. McKinley, Alaska, 1907-1908 Charles Sheldon (1909) The Auk 26: 66-70 |
 | A List of the Birds of Western South Dakota Stephen Sargent Visher (1909) The Auk 26: 144-153 |
 | A generic review of the plovers (Charadriinae, Aves) W J Bock (1958) Bulletin of The Museum of Comparative Zoology 118: 25-97 |
 | Trematodes of the Pacific Northwest, an annotated catalog Ivan Pratt and James E Mccauley (1961) Oregon State monographs. Studies in zoology 11: 1-113 |