000 00297nam a2200121Ia 4500
008 160710s1931 xx 000 0 und d
082 _aJOH
100 _aJOHNSON,GEORGE F.
245 _aPRACTICAL MATHEMATICS AND HANDWORK
260 _bBLACKIE & SON LIMITED
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300 _a56
942 _2ddc
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999 _c4604
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