Langer R H M <br/><br/>
Agricultural plants 
Langer R H M; Hill G D 
 - Cambridge  University press          1982 
 - vii,344p.  cm. 
<br/><br/><label>Standard No.: </label>52461 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Plant production<br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>J:5, M2