Coal Mining [těžba uhlí]
topical
89
Persistent link
https://www.medvik.cz/link/D003032
Allowable subheadings
- CL
- classification
- EC
- economics
- ED
- education
- ES
- ethics
- HI
- history 2
- IS
- instrumentation
- LJ
- legislation & jurisprudence 1
- MT
- methods 1
- OG
- organization & administration 2
- ST
- standards
- SN
- statistics & numerical data
- TD
- trends
...
Occurrences in Medvik records
J
Technology, Industry, Agriculture