XHTML (Document markup language)

New perspectives on blended HTML, XHTML, and CSS : introductory by: Bojack, Henry (Language materials, printed)

Web development & design foundations with XHTML by: Felke-Morris, Terry (Language materials, printed)

Mastering XHMTL : make the move from HTML to XHTML by: Tittel, Ed ... [et al.] (Language materials, printed)

XHTML essentials by: Sauers, Michael; Wyke, R. Allen (Language materials, printed)

Beginning HTML with CSS and XHTML : modern guide and reference by: Cook, Craig; Schultz, David (Language materials, printed)

Web publishing with HTML and CSS in one hour a day by: Colburn, Rafe; Lemay, Laura (Language materials, printed)