Quaintance, A. L <br/><br/>
The leaf blister mite of pear and apple  / 
by A. L. Quaintance 
 - Washington  :   Department of Agriculture 
 - 6 p. 
 - EUA. Dept. of Agriculture Farmers'bull.; 722 .
<br/><br/><label>LCCN: </label>203574 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eriophyes pyri  Pera -- Plagas  Manzana -- Plagas