An introduction to beneficial and injurious rangeland insects:  of the Western United States 
comp. by B. Austin Haws 
 - vii, 64 p. / 23 cm 
<br/><br/> FACULTAD DE ZOOTECNIA 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insectos--útiles y perjudiciales--pastizales<br/>Pastizales--insectos útiles y perjudiciales
<br/><br/><label>Dewey Class. No.: </label>595.7  / INT 1982