TR  / RI-9247 <br/>
Gregory J. Chekan <br/>
       Effects of abandoned multiple seam working on a long wall in virginia 
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<br/><U>Author Added Entry: </u><br/>David L. Dawyer;
<br><U>Copy Details:</u><br> Acc. No.: <b>TR6620</b>, Full Call No.: TR RI-9247,   Item type:  Technical Report , Location: General Stacks, <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>