00563cam a22001692u 4500003000800000005001700008008004100025020002200066040001200088082002100100110007000121245011800191260003100309300001800340504002400358650001100382BD-DhUL20231203152256.0080220s1980    fg  ||| b     ||| | eng d  a9231019163 (pbk.)  cBD-DhUL  223a341.232bUNR2 aUnited Nations Educational, Scientific, and Cultural Organization10aRecords of the General Conference, twenty - first session , Belgrade , 23 September to 28 October 1980 : bvol. 1  aParis : bUNESCO , c1980   av. ;c29 cm.   av. 1 . Resolutions  4aUNESCO