000 00352cam a22001097a 4500
008 180718b1971 xxu||||| |||| 00| 0 eng d
082 _aT253x4 Un3 c.2
245 _aEconomic aspects of automation
_cby Economic Commission for Europe, U.S.A.
260 _aNew York
_bUnited Nations
_c1971
300 _a60+p
700 _aU.S.A. Economic Commission for Europe
999 _c497709
_d497709