Extracts from the Transactions of the Institution of Mining and Metallurgy.  Section A : Mining industry.  Volume 97, 1988. 

 - London :  The Institution of Mining and Metallurgy,  1988. 
 - [32] p. :  ill. 
 - Transactions of the Institution of Mining and Metallurgy. Section A : Mining industry ;  vol. 97 .
 - Sir Julius Wernher Memorial lecture / Institution of Mining and Metallurgy ;  23 .
<br/><br/> Cover title.  Supplement to accompany volume, "Tunneling '88." 
<br/><br/>When an invention is something new : from practice to theory in tunnelling / G. Sauer - Tunnelling '88 : report of proceedings of fifth international 'Tunnelling' symposium held in London from 18 to 21 April, 1988. 
<br/><br/><label>LCCN: </label>90024128     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tunnels.<br/>Tunneling.