Ponencias 
/compiled by David R. Patton ... [et al.] 
 - Fort Collims, Co. :  USDA. Forest Service,  1986 
 - iii, 113 p. :  gráfs. 
 - General Technical Report  ; R.M.-135 .
 - General Technical Report  ; R.M.-135 .
<br/><br/><label>LCCN: </label>66100 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calabaza--México (Edo.)<br/>Candelilla.<br/>Flora desértica.<br/>Guayaba.<br/>Mezquite.<br/>Nopal.<br/>Oryzopsis hymenoides.<br/>Pastizales--Sonora.
<br/><br/><label>Dewey Class. No.: </label>581.9095  / R48