Bews, J. W. <br/><br/>
The world's grasses  : their differentiation, distribution, economics and ecology 

 - London :  Longmans,  1929 
 - 408 p.  : ilus. 
<br/><br/><label>LCCN: </label>11242 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología vegetal.<br/>Gramíneas--Clasificación.<br/>Pastos.
<br/><br/><label>Dewey Class. No.: </label>584.9  / B4