Howard, L. O <br/><br/>
House flies  / 
by L. O. Howard 
 - Washington  :   Department of Agriculture 
 - 22 p. 
 - EUA. Dept. of Agriculture Farmers' bull.; 679 .
<br/><br/><label>LCCN: </label>203720 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mosca doméstica