Cita APA (7a ed.)

Day, R. A., & Underwood, A. L. (1991). Quantitative Analysis (6a. ed.). Prentice Hall.

Cita Chicago Style (17a ed.)

Day, R. A., y A L. Underwood. Quantitative Analysis. 6a. ed. New Jersey: Prentice Hall, 1991.

Cita MLA (8a ed.)

Day, R. A., y A L. Underwood. Quantitative Analysis. 6a. ed. Prentice Hall, 1991.