Universal Decimal Classification

Mining of specific minerals, ores, rocks

Mining of specific minerals, ores, rocks
Class here only general information about branches of mining according to the mineral produced. Class particular mining operations in the other divisions of 622
622.3:553.9 Extraction of carbonaceous minerals, hydrocarbons
622.3

Broader Terms

Date of creation
06-Mar-2019
Accepted term
06-Mar-2019
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