000 00272nam a2200121Ia 4500
008 220201s1969 xx 000 0 eng d
082 _a658
100 _aCetron, Marvin J
245 0 _aTechnological forecasting
260 _bGordon
_c1969
300 _a345
942 _2ddc
999 _c78352
_d78352