Barczak, Thomas M. <br/><br/>
Evaluation of multitimbered wood crib supports / 
by Thomas M. Barczak and Carol Tasillo. 
 - Washington, DC :  U.S. Dept. of the Interior, Bureau of Mines,  1991. 
 - 11 p. :  ill. 
 - Report of investigations ;  9341. .
 - Report of investigations (United States. Bureau of Mines) ;  9341. .
<br/><br/><label>LCCN: </label>90045533  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mine timbering.<br/>Mine roof control--Testing.