Farmer, I. W. <br/><br/>
Coal mine structures / 
Ian Farmer 
 - London :  Chapman & Hall,  1985 
 - 310 p. :  ill. ;  24 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography : p. 288-302 
<br/><br/><label>ISBN: </label>0412250306 
<br/><br/><label>LCCN: </label>84-7725 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal mines and mining<br/>Ground control (Mining)