000 00324pab a2200145 454500
008 180718b1989 xxu||||| |||| 00| 0 eng d
100 _aSmil, Vaclav
245 _aOur changing environment
260 _c1989
300 _a9-12,46-8
362 _aJan.
650 _aEnvironment
773 _aCurrent History
909 _a7704
999 _c7704
_d7704