Bell peter <br/><br/>
Strasburger's  textbook of botany 

 - London and new york  Longman  1971 
<br/><br/><label>ISBN: </label>0 582 44169 2 
<br/><br/><label>LC Class. No.: </label>581/BEL  / 1 
<br/><br/><label>Dewey Class. No.: </label>581/BEL  / 1