FREUND, J. E. (1981). Modern elementary statistics.-- ed.5. Prentice-Hall of India.
芝加哥风格引文FREUND, John E. Modern Elementary Statistics.-- Ed.5. New Delhi: Prentice-Hall of India, 1981.
MLA引文FREUND, John E. Modern Elementary Statistics.-- Ed.5. Prentice-Hall of India, 1981.
警告：这些引文格式不一定是100％准确.