APA

Freund (John E.) ;Simon (Gary A.), . (1997). Modern Elementary Statistics Ed.9. : .

Chicago

Freund (John E.) ;Simon (Gary A.), . 1997. Modern Elementary Statistics Ed.9. : .

Harvard

Freund (John E.) ;Simon (Gary A.), . (1997). Modern Elementary Statistics Ed.9. : .

MLA

Freund (John E.) ;Simon (Gary A.), . Modern Elementary Statistics Ed.9. : . 1997.