Johnson, Elmer <br/><br/>
Cotton-Dusting machinery  / 
Elmer Johnson, S.t. Howard, B. R. Coad. 
 - Washington  :   Department of Agriculture 
 - 20 p 
 - EUA. Dept. Agr. Farmers Bull; 1319 .
<br/><br/><label>LCCN: </label>203389 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algodón -- Maquinaria  Algodón -- Fumigación