TY  - RPRT
TI  - Bulletin of the United States Geological and Geographical Survey of the Territories: No. 6, second series
AU  - Elliott Coues
AU  - F.B. Meek
AU  - Samuel H. Scudder
AU  - Robert Ridgway
PY  - 1876
DO  - 10.3133/70159435
UR  - https://pubs.usgs.gov/publication/70159435
ID  - 70159435
ER  -