Muller walter h. <br/><br/>
Botany A functional approach 

 - New york  Macmillan  1979 
<br/><br/><label>ISBN: </label>0-02-979440-4 
<br/><br/><label>LC Class. No.: </label>581/MUL  / 1 
<br/><br/><label>Dewey Class. No.: </label>581/MUL  / 1