Spurr William A. (1961). Workbook in business and economics statistics. Richard D. Irwin, inc..
芝加哥风格引文Spurr William A. Workbook in Business and Economics Statistics. Illinois: Richard D. Irwin, inc., 1961.
MLA引文Spurr William A. Workbook in Business and Economics Statistics. Richard D. Irwin, inc., 1961.
警告：这些引文格式不一定是100％准确.