Simpson, George Gaylord. <br/><br/>
The major features of evolution.// 
George Gaylord, Simpson. 
 - New York.  Columbia Univ. Press.  1969 
 - xx, 434p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evolution.
<br/><br/><label>Dewey Class. No.: </label>575 SIM