000 00284nam a22001097a 4500
082 _a372.35
_bCRO.S
100 _aCROXTON,W C
245 _aSCIENCE IN THE ELEMENTARY SCHOOL:
_bINCLUDING AN ACTIVITY PROGRAM
260 _aNEW YORK:
_bMcGRAW HILL,
_c1937.
300 _a455p.
942 _cBK
999 _c326944
_d326944