Hitchcock, A. S.  1865-1935. <br/><br/>
The genera of grasses of the United States  with special reference to the economic species. 
By A. S. Hitchcock. 
 - Issued March 1920; revised May 1936. 
 - Washington  [U.S. Govt print. off.,  1936] 
 - 302 p.  illus., xx pl. on 10 l.  26 cm. 
 - U. S. Dept of Agriculture.  Bulletin no. 772.  Professional paper. .
<br/><br/> Contribution from Bureau of plant industry.  Revised by Agnes Chase. 
<br/><br/><label>LCCN: </label>agr36000296  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Grasses--United States.
<br/><br/><label>LC Class. No.: </label>S21  / .A7 no. 772a