Mayr, Ernst,  1904- <br/><br/>
Systematics and the origin of species / 
by Ernst Mayr. 
 - New York :  Columbia University Press,  1982. 
 - xxxvii, 334 p. :  ill. ;  23 cm. 
 - Columbia classics in evolution series. .
<br/><br/> Reprint: Originally published: New York: Columbia University Press, 1942. With new introd, and bibliography. 
<br/><br/>Bibliography: p. 299-314. 
<br/><br/><label>ISBN: </label>0231054491 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology--Classification.<br/>Evolution.<br/>Zoology--Variation.