Tehon, Leo R <br/><br/>
Grug plants of illinois 

 - Urbaba:   Natural History Survey Division,   1951 
 - 135p. 
 - Circular   44 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Drug plants Seeds 
<br/><br/><label>Universal Decimal Class. No.: </label>633.88(73)  / J1