Russell r . scott <br/><br/>
Plant root systems: 

 - London  Mcgraw-hill  1977 
<br/><br/><label>ISBN: </label>07 084068 7 
<br/><br/><label>LC Class. No.: </label>581.31/RUS 
<br/><br/><label>Dewey Class. No.: </label>581.31/RUS