000 00313 a a2200145 04500
001 24606
003
040 _a
020 _a92-3101161-8
090 _a177000
110 _aUNESCO
245 _aSocial indicators: problems of definition and of selection
260 _aParis:
_bUNESCO
300 _a28 p.
999 _c16018
_d16018