Mayr, Ernst ,  1904- <br/><br/>
Animal species and evolution / 
Ernst Mayr 
 - Cambridge, Mass. :  Belknap Press of Harvard University Press,  1963 
 - xiv, 797 p. :  ill. ;  24 cm. 
<br/><br/> 1970 ed. published under title: Populations, species, and evolution 
<br/><br/>Bibliography : p. (675-781) 
<br/><br/><label>ISBN: </label>0674037502 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Species<br/>Zoology--Variation<br/>Evolution