APA-čujuhus (7. p.)
Freund, J. E. (1970). Modern business statistics (2nd ed.). Prentice-Hall.
Chicago-čujuhus (17. p.)
Freund, John E. Modern Business Statistics. 2nd ed. New York: Prentice-Hall, 1970.
MLA-čujuhus (9. p.)
Freund, John E. Modern Business Statistics. 2nd ed. Prentice-Hall, 1970.
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