000 00378nam a2200157Ia 4500
020 _a0195774167
040 _cPK-LaCSN
082 _b200_T
_a500
100 _a"nicholas horsburg"
245 0 _aPrimary science 3
260 _bOxford university press;
_aLondon,
_c1991.
300 _a94
942 _2ddc
_cTB
999 _c732199
_d732199