Data and computer communications.

MLA

Stallings, William. Data and Computer Communications. 7th ed. Upper Saddle River (N.J.): Prentice Hall, 2004.

APA

Stallings, W. (2004). Data and computer communications. 7th ed. Upper Saddle River (N.J.): Prentice Hall.

Chicago

Stallings, William, Data and Computer Communications. 7th ed. Upper Saddle River (N.J.): Prentice Hall, 2004.