APA (7th ed.) Citation

NetLibrary, Inc, Que Corporation, & Anton, K. K. (1998). Using QuarkXPress 4. Que Corporation.

Chicago Style (17th ed.) Citation

NetLibrary, Inc, Que Corporation, and Kelly Kordes Anton. Using QuarkXPress 4. Indianapolis: Que Corporation, 1998.

MLA (9th ed.) Citation

NetLibrary, Inc, et al. Using QuarkXPress 4. Que Corporation, 1998.