Freund, J. E. (1971). Mathematical statistics (2d ed.). Prentice-Hall.
芝加哥风格引文Freund, John E. Mathematical Statistics. 2d ed. Englewood Cliffs, N.J: Prentice-Hall, 1971.
MLA引文Freund, John E. Mathematical Statistics. 2d ed. Prentice-Hall, 1971.
警告：这些引文格式不一定是100％准确.