New trends in coal preparation technologies and equipment proceedings of the 12th international coal preparation congress; Cracow, Poland, May 23-27, 1994.
| निगमित लेखक: | |
|---|---|
| स्वरूप: | पुस्तक |
| भाषा: | English |
| प्रकाशित: |
Australia
Gordon & Breach
c1996.
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| विषय: |