APA (7th ed.) Citation

Halsall Fred. (1985). Introduction to data communications and computer networks. Addison-Wesley.

Chicago Style (17th ed.) Citation

Halsall Fred. Introduction to Data Communications and Computer Networks. Addison-Wesley, 1985.

MLA (8th ed.) Citation

Halsall Fred. Introduction to Data Communications and Computer Networks. Addison-Wesley, 1985.

Warning: These citations may not always be 100% accurate.