Rensch, Bernhard,  1900- <br/><br/>
Evolution above the species level / 

 - New York :  Wiley ,  c1959. 
 - xvii, 419 p. :  ill. ;  22 cm. 
<br/><br/> Translation of Neuere Probleme der Abstammungslehre. 
<br/><br/>Includes Bibliography: p. 363-403 and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evolution (Biology)<br/>Phylogeny.
<br/><br/><label>Dewey Class. No.: </label>591.38  / REN