APA

Kyas (Othmar), . (1997). "Internet Security: Risk Analysis, Strategies And Firewalls". : .

Chicago

Kyas (Othmar), . 1997. "Internet Security: Risk Analysis, Strategies And Firewalls". : .

Harvard

Kyas (Othmar), . (1997). "Internet Security: Risk Analysis, Strategies And Firewalls". : .

MLA

Kyas (Othmar), . "Internet Security: Risk Analysis, Strategies And Firewalls". : . 1997.