000 00285nam a2200121Ia 4500
008 220201s1970 xx 000 0 eng d
082 _bGUI
245 0 _aGuide to national bibliographical information centres
250 _a3
260 _bUNESCO
_c1970
300 _a195
942 _2ddc
999 _c18394
_d18394