D'Ancona U <br/><br/>
Strugle for existence 

 - Leiden  E J Brill       1954 
 - xi,274p.  cm. 
 - Bibliotheca biotheoretica; 6 .
<br/><br/><label>Standard No.: </label>71979 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evolution
<br/><br/><label>Dewey Class. No.: </label>G:66:(B28), J4