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Guidelines for application of the United Nations framework classification for resosurces (UNFC) to uranium and thorium resources / prepared by the ECE Expert Group on Resource Classification.
- 621.48335 G94687
- United Nations,
- 2017. ©2017
- New York ; Geneva :
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Application of the United Nations Framework Classification for Resources (UNFC) to geothermal energy resources : selected case studies / prepared by the UNECE Expert Group on Resource Classification.
- 333.88 A6521
- United Nations,
- 2017. ©2017
- New York ; Geneva :