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020 _a0521402271
040 _CSL
080 _aCSL-801.9 ECO-I 53
100 _aECO Umberto
245 _aInterpretation
250 _aI
260 _c1992
_aCambride
_b University Press
700 _aECO Umberto
942 _cBK
999 _c226625
_d226625