Parman, D. C. <br/><br/>
A box-type trap to aid in the control of eye gnats and blowflies  / 
by D. C. Parmans 
 - Washington  :   Department of Agriculture 
 - 4 p. 
 - EUA. Dep. of Agri. Circular 247 .
<br/><br/><label>LCCN: </label>203890 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trampas para insectos  Control de plagas