Freund, John E..
Modern Elementary Statistics / Freund John E.. - Englewood Cliffs, N.J. : Prentice-Hall, 1962. - X, 413 s.; 25 cm.
Modern Elementary Statistics / Freund John E.. - Englewood Cliffs, N.J. : Prentice-Hall, 1962. - X, 413 s.; 25 cm.