Mayr, Ernst <br/><br/>
Populations, Species, and Evolution. An Abridgement of Animal Species and Evolution 

 - 6 
 - Cambridge  Teh Belknap Press  1977 
 - 453 
<br/><br/><label>ISBN: </label>0-674-69013-3 
<br/><br/><label>Subjects--Index Terms: </label>POPULATION SPECIES EVOLUTION 
<br/><br/><label>Dewey Class. No.: </label>581