Armstrong, Sydney Frederick. <br/><br/>
British grasses and their employment in agriculture, 
by S. F. Armstrong. 
 - Cambridge,  University press,  1917. 
 - vii, [1], 199 p.  illus. 
<br/><br/>Bibliography: p. 192-193. 
<br/><br/><label>LCCN: </label>agr18000642  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Grasses--Great Britain.
<br/><br/><label>LC Class. No.: </label>QK495.G74  / A85