Cita APA (7th ed.)

Spiegel, M. R. (2013). Statistics /Murray R. Spiegel, Larry J.Stephens (4th ed.). McGraw Hill Education.

Cita Chicago (17th ed.)

Spiegel, Murray R. Statistics /Murray R. Spiegel, Larry J.Stephens. 4th ed. New Delhi: McGraw Hill Education, 2013.

Cita MLA (9th ed.)

Spiegel, Murray R. Statistics /Murray R. Spiegel, Larry J.Stephens. 4th ed. McGraw Hill Education, 2013.