APA (7th ed.) Citation

Liu, C., Messier, R., & Miller, D. R. (2015). Learning path: Networking for sysadmins. O'Reilly Media.

Chicago Style (17th ed.) Citation

Liu, Cricket, Ric Messier, and David R. Miller. Learning Path: Networking for Sysadmins. [Place of publication not identified]: O'Reilly Media, 2015.

MLA (9th ed.) Citation

Liu, Cricket, et al. Learning Path: Networking for Sysadmins. O'Reilly Media, 2015.