Ray, E., & Ray, D. (2014). Unix and Linux: Visual Quickstart Guide, Fifth Edition (5th edition.). Peachpit Press.
Chicago Style (17th ed.) CitationRay, Eric, and Deborah Ray. Unix and Linux: Visual Quickstart Guide, Fifth Edition. 5th edition. Peachpit Press, 2014.
MLA (9th ed.) CitationRay, Eric, and Deborah Ray. Unix and Linux: Visual Quickstart Guide, Fifth Edition. 5th edition. Peachpit Press, 2014.
Warning: These citations may not always be 100% accurate.