Cita APA (7th ed.)

Naiman, A., Rosenfeld, R., & Zirkel. (1977). Understanding statistics (2a. ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Naiman, Arnold, Robert Rosenfeld, i Zirkel. Understanding Statistics. 2a. ed. Nueva York: McGraw-Hill, 1977.

Cita MLA (9th ed.)

Naiman, Arnold, et al. Understanding Statistics. 2a. ed. McGraw-Hill, 1977.