Update on ventilation for longwall mine dust control / 
by Robert A. Jankowski ... [et al.]. 
 - Avondale, Md. :  U.S. Dept. of the Interior, Bureau of Mines,  1993. 
 - 11 p. 
 - Information circular ;  9366 .
 - Information circular (United States. Bureau of Mines) ;  9366 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources.<br/>Longwall mining--Dust control.<br/>Mine ventilation.<br/>Mine dust.