000 00392nam a2200169Ia 4500
008 220907s9999 xx 000 0 und d
020 _a
040 _aGS-LRC
_cGS-LRC
082 _a521 P22g
100 _aParker, Bertha M.
245 0 _aGravity
250 _a-
260 _aSacramento
_bCalifornia State Department of Education
_c1959
300 _a36
942 _cBK
999 _c4121
_d4121