000 00278nam a2200121Ia 4500
008 220201s1970 xx 000 0 eng d
082 _bDUN
100 _aDuncan, T.
245 0 _aExploring physics book 1
260 _aLondon
_bJhon Murray
_c1970
300 _a113
942 _2ddc
999 _c17812
_d17812