000 003200000a22001210004500
008 140223b1981 xxu||||| |||| 00| 0 eng d
041 _aEnglish
100 _a:UNESCO
245 _aAPPROPRIATE TECHNOLOGIES IN THE CONSERVATION OF CULTURAL PROPERTY
260 _aPARIS
_bUNESCO
_c1981
650 _a
_a
906 _a:UNESCO
999 _c136468
_d136468