Willmer colin m. <br/><br/>
Stomata 

 - London and new york   Longman  1983 
<br/><br/><label>ISBN: </label>0 582 44632 5 
<br/><br/><label>LC Class. No.: </label>581.121/WIL 
<br/><br/><label>Dewey Class. No.: </label>581.121/WIL