APA (7th ed.) Citation

Feller, W. (1971). An introduction to probability theory and its applications (2nd ed.). John Wiley & Sons.

Chicago Style (17th ed.) Citation

Feller, William. An Introduction to Probability Theory and Its Applications. 2nd ed. New York [etc.]: John Wiley & Sons, 1971.

MLA (9th ed.) Citation

Feller, William. An Introduction to Probability Theory and Its Applications. 2nd ed. John Wiley & Sons, 1971.