APA (7th ed.) Citation

Black, U. D. (1989). Data networks: Concepts, theory and practice. Prentice-Hall.

Chicago Style (17th ed.) Citation

Black, Uyless D. Data Networks: Concepts, Theory and Practice. Englewood Cliffs, New Jersey: Prentice-Hall, 1989.

MLA (9th ed.) Citation

Black, Uyless D. Data Networks: Concepts, Theory and Practice. Prentice-Hall, 1989.