Wonnacott, Thomas H. Student workbook for introductory statistics for business and economics / by Thomas H. Wonnacott and Ronald J. Wonnacott. - 3rd ed. - New York, N.Y. : John Wiley & Sons, 1984. - 291, R-50 p. Wonnacott, Ronald J. ISBN: 0471097179 Subjects--Topical Terms: ՎիճակագրությունEconomics--Statistical methods.