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| 008 | 240530s9999 xx 000 0 und d | ||
| 082 | _a660.2 | ||
| 082 | _bELA | ||
| 100 | _aELANGWAN R. | ||
| 245 | 0 | _aUNIT OPERATION IN ENVIRONMENTAL ENGG. | |
| 250 | _n0 | ||
| 250 | _n1997 | ||
| 260 | _bNEW AGE INC. | ||
| 300 | _a178 | ||
| 365 | _b165 | ||
| 650 | _aCHEMICAL | ||
| 650 | _aUNIT OPERATION IN ENVIRONMENTAL ENGG. | ||
| 942 | _cREF | ||
| 950 | _CCHEMICAL | ||
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_c192449 _d192449 |
||