Jones, David A. <br/><br/>
Variation and adaptation in plant species 
by David A Jones and Dennis A Wilkins 
 - London  Heinemann Educational Books  1971 
 - v, 184p.;  21cm.- 
 - The Scholarship series in biology .
<br/><br/><label>Dewey Class. No.: </label>581.5  / JON