000 00283nam a2200109Ia 4500
008 220201s1970 xx 000 0 eng d
100 _aPSNS
245 3 _aAn apporach to physical sci,Supplementry chapters
260 _bNewyork:John Wiley & Sons
_c1970
300 _a166
942 _2ddc
999 _c78651
_d78651