000 | 00490 a2200157 4500 | ||
---|---|---|---|
041 | _aEn | ||
082 |
_a338.46629205 _bWIJ |
||
100 | _aWijayananda , N.P. | ||
245 | _aThe graphite industry in SriLanka | ||
260 |
_c1987 _aColombo _bNatural Resources Energy & Science Authority _g1987 |
||
300 |
_bill. _c21 cm. _a[vi],95 p. |
||
440 | _aScince education series; No. 24 | ||
650 | _aSECONDARY INDUSTRIES - GRAPHITE - SERIAL PUBLICATIONS | ||
650 | _aPRODUCTION ECONOMICS | ||
942 | _cSR | ||
999 |
_c15337 _d16884 |