Gupta, P. C. (1996). Data communications. Prentice-Hall of India.
Chicago Style (17th ed.) ZitazioaGupta, Prakash C. Data Communications. New Delhi: Prentice-Hall of India, 1996.
MLA (9th ed.) ZitazioaGupta, Prakash C. Data Communications. Prentice-Hall of India, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.