Mayr Ernst Ed. <br/><br/>
Species problems 
Mayr Ernst Ed. 
 - Washington  American Association for the Advancement of Sciences     1957 
 - ix, 395p.  cm. 
<br/><br/><label>Standard No.: </label>38322 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Genetics
<br/><br/><label>Dewey Class. No.: </label>G:6x, J7