WILLIAMSON HEATHER. (2009). XML: COMPLETE REFERENCE. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
Chicago-čujuhus (17. p.)WILLIAMSON HEATHER. XML: COMPLETE REFERENCE. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2009.
MLA-čujuhus (9. p.)WILLIAMSON HEATHER. XML: COMPLETE REFERENCE. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2009.
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