Ashton, Beryl G. <br/><br/>
The principles of modern biology  : genes, chromosomes and evolution 
Beryl G. Ashton 
 - Boston:  Houghton mifflin,  1967. 
 - xii, 172p. 
<br/><br/> PB 
<br/><br/><br/>Eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Dewey Class. No.: </label>575.1  / ASG