APA (7th ed.) Citation

Welsh, C. (2013). GNS3 Network simulation guide. Packt Publishing.

Chicago Style (17th ed.) Citation

Welsh, Chris. GNS3 Network Simulation Guide. Birmingham: Packt Publishing, 2013.

MLA (9th ed.) Citation

Welsh, Chris. GNS3 Network Simulation Guide. Packt Publishing, 2013.