ENNS, P. G. (1985). Business statistics: Methods and applications. Richard D. Irwin.
芝加哥风格引文ENNS, Philip G. Business Statistics: Methods and Applications. Illinois: Richard D. Irwin, 1985.
MLA引文ENNS, Philip G. Business Statistics: Methods and Applications. Richard D. Irwin, 1985.
警告：这些引文格式不一定是100％准确.