Barnes, M. M <br/><br/>
Suggestions for the control of insects and mites on apples and pears in Southern California during 1949  / 
M. M. Barnes 
 - Barkeley, California  :   Citrus. Exp. Sta. 
 - 8 h. 
 - California. Citrus Exp. Sta. New Lotter; 40 .
<br/><br/><label>LCCN: </label>202181 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Manzana -- Plagas  Pera -- Plagas  Control de plagas