Weaver, John E. <br/><br/>
Prairie plants and their environment  : a fifty-year study in the Midwest 

 - Lincoln :  University of Nebraska,  1968 
 - 297 p.  : ilus. 
<br/><br/><label>LCCN: </label>53241 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología vegetal.<br/>Pastos.<br/>Praderas.
<br/><br/><label>Dewey Class. No.: </label>633.2  / W4