Organiscak, John A. <br/><br/>
Dust controls to improving quality of longwall intake air 
Organiscak, John A. 
 - Washington  Bureau of mines  1986 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA<br/>CONTROL DE POLVO EN LAS MINAS
<br/><br/><label>Universal Decimal Class. No.: </label>622.807