00798nam a2200205   450000500170000000600040001700700040002100800040002502000150002904000090004405000210005311101290007424501200020326000650032330000220038865000270041094200130043799900170045095201250046720170721160659.0000000000  a0900488662  aUOEL  aTN 291b.I6 1983  aInstitution of mining and metallurgy in association with the Institution of quarrying : cBistol, England,d4-6th oct, 1983.  aSurface mining and quarrying :bPapers prepared at the secnd international surface mining and quarrying symposium .  aEngland :bThe istitution of mining and metallurgy,cc 1983.  avi,449 p. :bill.  ametallurgyxTechnology  2lcccSBK  c13982d13982  00102lcc4070aUOEbUOEcGENd2017-07-21l0oTN 291 .I6 1983p10013304r2017-07-21 00:00:00t10013304w2017-07-21ySBK