Cita APA (7th ed.)
Williams, F. (1979). Reasoning with statistics (2d ed.). Holt, Rinehart and Winston.
Cita Chicago (17th ed.)
Williams, Frederick. Reasoning with Statistics. 2d ed. New York: Holt, Rinehart and Winston, 1979.
Cita MLA (9th ed.)
Williams, Frederick. Reasoning with Statistics. 2d ed. Holt, Rinehart and Winston, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.