Ridgway, Robert,  1850-1929. <br/><br/>
Nomenclature of North American birds chiefly contained in the United States National Museum. 
By Robert Ridgway. 
 - Washington,  Govt. Print. Off.,  1881. 
 - 94 p.  24 cm. 
 - Bulletin of the United States Museum,  no. 21 Smithsonian Institution publication 422. .
<br/><br/><label>LCCN: </label>s  13000129  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--Nomenclature.<br/>Birds--North America.
<br/><br/><label>LC Class. No.: </label>Q11  / .U6 no. 21