APA

Johnson N., Kotz S., . (1977). Urn models and their application. New York: [Wiley].

Chicago

Johnson NL, Kotz S, . 1977. Urn models and their application. New York: [Wiley].

Harvard

Johnson N., Kotz S., . (1977). Urn models and their application. New York: [Wiley].

MLA

Johnson NL, Kotz S, . Urn models and their application. New York: [Wiley]. 1977.