Simpson, George Gaylord. <br/><br/>
The meaning of evolution /  
by George Gaylord Simpson. 
 - 1st.Edn. /  
 - New Delhi :   Oxford & IBH Publishing Co.. 
 - xi,368p ;  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rates of Evolution
<br/><br/><label>Dewey Class. No.: </label>G:66  / H9S,K7;s