Cita APA (7a ed.)

Freund, J. E., & Walpole, R. E. (1987). Mathematical statistics (4th ed.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Freund, John E., y Ronald E. Walpole. Mathematical Statistics. 4th ed. Englewood Cliffs, N. J.: Prentice-Hall, 1987.

Cita MLA (8a ed.)

Freund, John E., y Ronald E. Walpole. Mathematical Statistics. 4th ed. Prentice-Hall, 1987.