000 00354nam a2200157Ia 4500
001 2854
008 141107s9999 xx 000 0 und d
050 _aQA 36.E51 1967
100 _aEicholz Robert
245 _aSchool Mathematics
250 _a0
260 _aCalifornia
260 _bCalifornia Dept. Of Educ.
260 _c1967
300 _a,;ill.
999 _c30408
_d30408