APA (7th ed.) Citation

Gowar, J. (1993). Optical communication systems (2nd ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Gowar, John. Optical Communication Systems. 2nd ed. New York [etc.]: Prentice-Hall, 1993.

MLA (9th ed.) Citation

Gowar, John. Optical Communication Systems. 2nd ed. Prentice-Hall, 1993.