000 00279nam a22000977a 4500
008 230913b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
245 _aA window open on the world courier
260 _c1956
_bUNESCO
942 _cBK
_2udc
999 _c65427
_d65427