000 00233nam a22001097a 4500
082 _a372.13
_bGIN.O
100 _aGINGELL,LESLEY P
245 _aABC'S OF THE OPEN CLASSROOM
260 _bETC,
_c1973.
300 _a276p.
942 _cBK
999 _c327162
_d327162