Proceedings 

 - Tucson :  University of Arizona,  (1975?) 
 - 176 p 
<br/><br/><label>LCCN: </label>25859 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Guayule.<br/>Plantas hulíferas.
<br/><br/><label>Dewey Class. No.: </label>633.895  / H3 1975