000 00415nam a2200145Ia 4500
008 130225s9999 xx 000 0 und d
080 _a553.94:665.5
100 _aDutt, A.B.
245 _aPreliminary report on coal suitable for the manufacture of synthetic petroleum
260 _aCalcutta
_c1950
300 _a1-107 p. & 7 plates
440 _aNo. 1; Bulletins of the Geolo
901 _a31064
942 _cB
_2udc
999 _c6042
_d6042