000 00281nam a2200109 4500
245 _aScience education world wide
_cedited by Robert Morris
710 _aMorris, Robert
260 _aParis
_bUNESCO
_c1990
300 _a242p.:tables; 22cm.
020 _a9231026666
082 _a507
_bMOR
999 _c60861
_d60861