Shull, A .Franklin . <br/><br/>
Evolution /  Textual Documents 
A .Franklin Shull. 
 - 1st ed / 
 - New York :  McGraw - Hill book company ,  1951. 
 - 311p. :  ill ;  22cm. . 
<br/><br/><label>Subjects--Index Terms: </label>Botany Evolution 
<br/><br/><label>Dewey Class. No.: </label>575.01  / Sh 92 Ev