Research Progress Report  / 
by Western Society of Weed Science 
 - Phoenix, Arizona :   La sociedad 
 - v. 
<br/><br/> La biblioteca tiene: 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1981 
<br/><br/><label>LCCN: </label>206421 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Malas hierbas -- investigación--congresos
<br/><br/><label>Dewey Class. No.: </label>PA 632.58 W46