Simpson, George Gaylord, 1902-  Simpson, George Gaylord, 1902- <br/><br/>
Concession to the improbable :  an unconventional autobiography / 
George Gaylord Simpson. 
 - New Haven :  Yale University Press,  1978. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>LCCN: </label>77020246 
<br/><br/><label>Subjects--Personal Names: </label><br/>Simpson, George Gaylord, 1902- Simpson, George Gaylord, 1902- 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontologists -- United States -- Biography.--Paleontologists -- United States -- Biography.--Paleontologists -- United States -- Biography.
<br/><br/><label>LC Class. No.: </label>QE707.S55  / A3 
<br/><br/><label>Dewey Class. No.: </label>560/.92/4  B