APA

Halsall F., . (1997). Data Communications, Computer Networks and Open Systems. : Addison-Wesley Publishing Company.

Chicago

Halsall F, . 1997. Data Communications, Computer Networks and Open Systems. : Addison-Wesley Publishing Company.

Harvard

Halsall F., . (1997). Data Communications, Computer Networks and Open Systems. : Addison-Wesley Publishing Company.

MLA

Halsall F, . Data Communications, Computer Networks and Open Systems. : Addison-Wesley Publishing Company. 1997.