APA

Freund J. E., . (1967). Modern elementary statistics. New Jersey: Prentice-Hall.

Chicago

Freund John E, . 1967. Modern elementary statistics. New Jersey: Prentice-Hall.

Harvard

Freund J. E., . (1967). Modern elementary statistics. New Jersey: Prentice-Hall.

MLA

Freund John E, . Modern elementary statistics. New Jersey: Prentice-Hall. 1967.