Cita APA (7th ed.)
Ott, . L. (1976). Understanding statistics (2nd ed.). Duxbury.
Cita Chicago (17th ed.)
Ott, Lyman. Understanding Statistics. 2nd ed. Belmont: Duxbury, 1976.
Cita MLA (9th ed.)
Ott, Lyman. Understanding Statistics. 2nd ed. Duxbury, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.