North, Simon. SAMS teach yourself XML in 21 days / Teach yourself XML in 21 days Simon North, Paul Hermans. - Indianopolis : SAMS, 1999. - xiii, 580 pages. : illustrations. ; 24 cm. Includes bibliographical references and index. ISBN: 1575213966 LCCN: 97069126 Subjects--Topical Terms: XML (Document markup language). LC Class. No.: QA 76.9 / T48N67 1999 Dewey Class. No.: 005.7/2