Sibley, Charles Gald, 1917- <br/><br/>
Phylogeny and classification of birds  a study in molecular evolution 
Charles G. Sibley and Jon E. Ahlquist 
 - New Haven, Conn.  Yale University Press  1990 
 - xxiii, 976 p. : ill. ; 27 cm. 
<br/><br/>Includes bibliographical references (p. 871-967) and index. 
<br/><br/><label>ISBN: </label>0300040857 
<br/><br/><label>LCCN: </label>90-035938 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--Genetics<br/>Nucleic acid hybridization<br/>Birds--Classification