000 | 00447nam a22001337a 4500 | ||
---|---|---|---|
008 | 230516b |||||||| |||| 00| 0 eng d | ||
040 |
_aNational Science Library _cNational Science Library |
||
080 |
_a553.9(082.2) _bK8 |
||
245 |
_aProceedings of the research seminar coal-a petrographic approach _c/ Department of Geology |
||
260 |
_aNagpur: _bDepartment of Geology, _c1968 |
||
300 | _a81p. | ||
650 | _aPetrograph | ||
942 |
_2udc _cPR |
||
999 |
_c30446 _d30446 |