000 00680nam a2200169 a 4500
005 20210219160512.0
008 081109s1989 mx r 000 0 spa d
035 _aUPN01000166959
049 _aUNE
080 _a369.1 "313" (4)=20 PRO No.55.
245 0 0 _aProceedings of the second international meeting on 21st century studies: volume IV: national studies-Europe (United Kingdom, Ireland, Iceland, Portugal, Poland, European environmental policies)
260 _aParis :
_bUNESCO,
_c1989.
300 _a268 p.
440 0 _aStudies and documents. Major Programme I. Reflection on wor-
690 _aDesarrollo economico y social- Sociedad futura- Europa
905 _aUNESCO
999 _c139070
_d139070