Leidy, Joseph,  1823-1891. <br/><br/>
Memoir on the extinct species of American ox. 
By Joseph Leidy. 
 - [Washington,  Smithsonian Institution,  1852] 
 - 20 p.  V pl.  33 cm. 
 - Smithsonian contributions to knowledge,  vol. V, art. 3 Smithsonian Institution publication 41. .
<br/><br/><label>LCCN: </label>s  13000022  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oxen, Fossil.
<br/><br/><label>LC Class. No.: </label>Q11  / .S68 vol. 5