APA (7th ed.) Citation

Li, G., Chang, L., & Li, S. (2015). Signals and systems: Fundamentals. De Gruyter.

Chicago Style (17th ed.) Citation

Li, Gang, Liping Chang, and Sheng Li. Signals and Systems: Fundamentals. Berlin [u.a.]: De Gruyter, 2015.

MLA (9th ed.) Citation

Li, Gang, et al. Signals and Systems: Fundamentals. De Gruyter, 2015.