Howe, R. W <br/><br/>
Studies of the mexican cotton boll weevil in the Mississippi Valley  / 
R. W. Howe 
 - Washington  :   Department of Agriculture 
 - 32 p. 
 - EUA. Dept. Agri. Bull; 358 .
<br/><br/><label>LCCN: </label>203010 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anthonomus grandis  Algodón -- Plagas