| 000 | 00502nam a2200169Ia 4500 | ||
|---|---|---|---|
| 999 |
_c8620 _d8620 |
||
| 005 | 20220425095442.0 | ||
| 008 | 180712s9999 xx 000 0 und d | ||
| 020 | _a9231020811 | ||
| 082 |
_a333.8 _bUNI _223 |
||
| 110 |
_998358 _aUnited Nations Educational, Scientific and Cultural Organization |
||
| 245 | _aCoal utillization: an international forum on new technologies | ||
| 260 |
_aPairs _bUNESCO _c1983 |
||
| 300 | _a134 p. | ||
| 500 | _aIncludes index. | ||
| 650 | _aNatural resources | ||
| 942 | _cS | ||