000 00303nam a22001217a 4500
008 180222b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a33
100 _a52
101 _aECO
245 _aTHE QUALITY AND ECONOMIC SIGNIFIANCE OF ANTICIPATIONS DAT
_cHELLER.W.W
942 _2udc
_cBK
999 _c43208
_d43208