000 00267nam a2200109Ia 4500
008 160710s1951 xx 000 0 und d
100 _aTOFT,LOUIS & MCKAY,A.D.D.
245 _aPRACTICAL MATHEMATICS
260 _bPITMAN & SONS
_c1951
300 _a504
942 _2ddc
_cB
999 _c17822
_d17822