00315nam a2200121Ia 4500008004100000082001500041100002000056245003800076260004200114300001300156942000700169999001700176190709s9999    xx            000 0 und d  a510.9 C124  aCajori, Florian 0aHistory or elementary mathematics  aNew yorkbThe Macmillan companyc1957  aviii,324  cBK  c37807d37807