Black, Michael. <br/><br/>
Plant growth 

 - London :  Heinemann Educational Books,  1970 
 - 193 p.  : ilus. 
<br/><br/><label>LCCN: </label>17698 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plantas--Crecimiento--Aditivos.
<br/><br/><label>Dewey Class. No.: </label>581.134  / B5