00319nam a2200109Ia 450000500170000000800410001708200140005810000190007224500670009126000430015830000080020120260224040846.0260224s9999||||xx |||||||||||||| ||und||  a311.2 SPR  aSprowls, R.C.  0aElementary statistics for students of social science, business  aNew York, Mc-Graw-Hill Book Co. c1955  a392