000 00286nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a511.1
_bSTI
100 _aSticker, Henry
245 0 _aHow to calculate quickly: Full course in speed arithmetic
260 _aUSA
_bDover
942 _cBK
999 _c36479
_d36479