000 00284nam a2200121Ia 4500
008 220201s1971 xx 000 0 eng d
082 _a658
_bDReference U
100 _aDrucker,P.F.
245 0 _aAge of Discontinuity
260 _bPan Book Ltd
_c1971
300 _a476
942 _2ddc
_02
999 _c3397
_d3397