Feller, W. (1950). An introduction to probability theory and its applications: Volume 1 - 2nd Edition. Wiley.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Feller, William. An Introduction to Probability Theory and Its Applications: Volume 1 - 2nd Edition. New York: Wiley, 1950.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Feller, William. An Introduction to Probability Theory and Its Applications: Volume 1 - 2nd Edition. Wiley, 1950.