00494nam a2200157Ia 4500 190328s9999||||xx |||||||||||||| ||und|| 0-454-01730-8 NITIL NITIL 21st 622 T458I Thomas, L J An Introduction to mining exploration, feasibility, extraction, rock mechanics L J Thomas Sydney Hicks Smith 1973 ix, 436p. Mining industries; Mining engineering; Rock mechanics BKS 28839 28839 0 0 DDC 0 0 NITIL NITIL 2019-04-03 0 622 T458I 89175 2019-04-03 00:00:00 2019-04-03 BKS