000 00274nam a2200121Ia 4500
100 _aHillway, Tyrus
942 _cBK
654 _a
245 _aHandbook of educational research
260 _aBoston
_bHoughton Mifflin Company
_c1969
082 _a370.1
300 _axii,117
999 _c416208
_d416208
041 _aeng