Hitchcock, A. S. <br/><br/>
Manual of the grasses of the United States. 

 -  by Agnes Chase 
 - Washington :  Government Printing Office,  c1935. 
 - 1040 pages :  Illustrations ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0486227189(v.2) 
<br/><br/><label>LC Class. No.: </label>QK495.G74  / H525 1971 
<br/><br/><label>Dewey Class. No.: </label>584/.9/0973