Cita APA (7th ed.)

Freund, J. E., & Perles, B. M. (1974). Business statistics: A first course. Prentice-Hall.

Cita Chicago (17th ed.)

Freund, John E., i Benjamin M. Perles. Business Statistics: A First Course. Englewood Cliffs, N.J.: Prentice-Hall, 1974.

Cita MLA (8th ed.)

Freund, John E., i Benjamin M. Perles. Business Statistics: A First Course. Prentice-Hall, 1974.