Wheldon, H. J., & Thirkettle, G. L. (1976). Wheldon's Business statistics and statistical method (8th ed.). Macdonald and Evans.
芝加哥风格引文Wheldon, Harold J., 与 G. L. Thirkettle. Wheldon's Business Statistics and Statistical Method. 8th ed. Plymouth: Macdonald and Evans, 1976.
MLA引文Wheldon, Harold J., 与 G. L. Thirkettle. Wheldon's Business Statistics and Statistical Method. 8th ed. Macdonald and Evans, 1976.
警告：这些引文格式不一定是100％准确.