000 00296 a2200133 4500
080 _a5(061)
_bU 3 W
245 1 _aWorld science report, 1993
260 _aParis
_bUnesco
_c1993
650 _aWorld Science Report
700 _aUnesco, Paris
100 _a
_d
300 _a278 p.
901 _a201070
999 _c65649
_d65649