Avian anatomy  integment 
by Alfred M. Lucas and Peter R. Stettenheim. 
 - Washington  U.S. Agricultural Research Service; for sale by the Supt. of Docs., U.S. Govt. Print. Off.  1972. 
 - 2 v.  illus. 
 - Agriculture handbook .
<br/><br/> Include bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--Anatomy.<br/>Skin