APA
Feller W., . (1968). An introduction to probability theory and its applications. New York: Wiley.
Chicago
Feller William, . 1968. An introduction to probability theory and its applications. New York: Wiley.
Harvard
Feller W., . (1968). An introduction to probability theory and its applications. New York: Wiley.
MLA
Feller William, . An introduction to probability theory and its applications. New York: Wiley. 1968.