Cita APA (7a ed.)

Freund, J. E., & Williams, F. J. (1982). Elementary business statistics: The modern approach (4th ed.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Freund, John E., y Frank Jefferson Williams. Elementary Business Statistics: The Modern Approach. 4th ed. Englewood Cliffs, N.J.: Prentice-Hall, 1982.

Cita MLA (9a ed.)

Freund, John E., y Frank Jefferson Williams. Elementary Business Statistics: The Modern Approach. 4th ed. Prentice-Hall, 1982.