Pitts, N., James, S. N., & Tittel, E. (1998). HTML style sheets design guide. Cariolis Group Books.
Cita Chicago (17th ed.)Pitts, Natanya, Stephen N. James, i Ed Tittel. HTML Style Sheets Design Guide. Albany, N.Y: Cariolis Group Books, 1998.
Cita MLA (9th ed.)Pitts, Natanya, et al. HTML Style Sheets Design Guide. Cariolis Group Books, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.