Humphrey, Robert R. <br/><br/>
Arizona range grasses:  their description, forage value and management 
Robert R. Humphrey 
<br/><br/> FACULTAD DE ZOOTECNIA 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pastos--Arizona<br/>Gramíneas--valor forrajero
<br/><br/><label>Dewey Class. No.: </label>584.9'09'791  / HUM 1970