Beijing <br/><br/>
Safety in mines research / 
Dai Guoquan 
 - Beijing :  China coal industry,  1987 
<br/><br/><label>ISBN: </label>750200041 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Safety in Mines
<br/><br/><label>Dewey Class. No.: </label>622.8  / GUO