Dimitriades, Basil <br/><br/>
Geologic investigations of underground coal mining problems 
Dimitriades, Basil; Sutterfield, F. D.; Wesson, T. C.; Sturm, G. P. Jr. 
 - Washington  Bureau of mines  1975 
 - 19 p. 
 - RI 8023 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA<br/>MINING
<br/><br/><label>Subjects--Index Terms: </label>NIEBLA TOXICA CAMARA DE SMOG SMOG SMOG CHAMBER 
<br/><br/><label>Universal Decimal Class. No.: </label>622