APA (7th ed.) Citation

Abdullah, M. K., Dimyati, K., Abas @ Ismail, A. F., Endut, R., & Abdullah, F. (2007). Modulation of signals in optical systems.

Chicago Style (17th ed.) Citation

Abdullah, Mohammad Khazani, Kaharudin Dimyati, Ahmad Fauzi Abas @ Ismail, Rosdisham Endut, and Fairuz Abdullah. Modulation of Signals in Optical Systems. 2007.

MLA (9th ed.) Citation

Abdullah, Mohammad Khazani, et al. Modulation of Signals in Optical Systems. 2007.