Simpson, George Gaylord,  1902-1984. <br/><br/>
The major features of evolution / 
By George Gaylord Simpson,  
 - New York :  Columbia University Press,  1953. 
 - xx, 434 p. :  ill. ;  24 cm. 
<br/><br/> Based on the author's Tempo and mode of evolution. 
<br/><br/>Includes Bibliography and Index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evolution (Biology)
<br/><br/><label>Dewey Class. No.: </label>575.01  / SIM