APA (7th ed.) Citation

Clark, A. P. (1977). Advanced data-transmission systems / (by) A.P. Clark. Pentech Press.

Chicago Style (17th ed.) Citation

Clark, A P. Advanced Data-transmission Systems / (by) A.P. Clark. London (etc.): Pentech Press, 1977.

MLA (9th ed.) Citation

Clark, A P. Advanced Data-transmission Systems / (by) A.P. Clark. Pentech Press, 1977.

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