APA (7th ed.) Citation

Pitts, N., James, S. N., & Tittel, E. (1998). HTML style sheets design guide. Cariolis Group Books.

Chicago Style (17th ed.) Citation

Pitts, Natanya, Stephen N. James, and Ed Tittel. HTML Style Sheets Design Guide. Albany, N.Y: Cariolis Group Books, 1998.

MLA (9th ed.) Citation

Pitts, Natanya, et al. HTML Style Sheets Design Guide. Cariolis Group Books, 1998.