Citazione Stile APA (7a Edizione)

Freund, J. E., & Williams, F. J. (1972). Elementary business statistics: The modern approach (2nd ed.). Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Freund, John E., e Frank Jefferson Williams. Elementary Business Statistics: The Modern Approach. 2nd ed. Englewood Cliffs, N.J: Prentice-Hall, 1972.

Citatione MLA (9a ed.)

Freund, John E., e Frank Jefferson Williams. Elementary Business Statistics: The Modern Approach. 2nd ed. Prentice-Hall, 1972.