000 00281nam a2200097Ia 4500
100 _aBoardman Charles, W
245 _aDemocratic supervision in secondary schools /
_cby Charles, W Boardman
260 _aLondon :
_bHoughton mifflin company,
_c1953.
300 _a557p. :
942 _cGEN
999 _c23629
_d23629