APA (7th ed.) Citation

Wells, N. D. (2000). Linux!: I didn't know you could do that... Sybex.

Chicago Style (17th ed.) Citation

Wells, Nicholas D. Linux!: I Didn't Know You Could Do That... San Francisco: Sybex, 2000.

MLA (8th ed.) Citation

Wells, Nicholas D. Linux!: I Didn't Know You Could Do That... Sybex, 2000.