Παραπομπή APA

Freund, J. E., & Williams, F. J. (1970). Freund and Williams' modern business statistics (2nd ed.). London: Pitman pub..

Παραπομπή Chicago Style

Freund, John E., and Frank J. Williams. Freund and Williams' Modern Business Statistics. 2nd ed. London: Pitman pub., 1970.

Παραπομπή MLA

Freund, John E., and Frank J. Williams. Freund and Williams' Modern Business Statistics. 2nd ed. London: Pitman pub., 1970.

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