TY  - BOOK
AU  - Ridgway,Robert
TI  - Nomenclature of North American birds chiefly contained in the United States National Museum
T2  - Bulletin of the United States Museum,
AV  - Q11 .U6 no. 21
PY  - 1881///
CY  - Washington
PB  - Govt. Print. Off.
KW  - Birds
KW  - Nomenclature
KW  - North America
ER  -