APA-referens

Hoel, P. G., & Port, S. C. S. (1991). Introduction to probability theory. Universal.

Chicago-stil citat

Hoel, Paul G., och Sidney C Stone Port. Introduction to Probability Theory. New Delhi: Universal, 1991.

MLA-referens

Hoel, Paul G., och Sidney C Stone Port. Introduction to Probability Theory. Universal, 1991.