The TEI Guidelines: "TEI P4
The Text
TEI P4 is the current version of the Guidelines, and should be cited as Sperberg-McQueen, C.M.. and Burnard, L. (eds.) (2002). TEI P4: Guidelines for Electronic Text Encoding and Interchange. Text Encoding Initiative Consortium. XML Version: Oxford, Providence, Charlottesville, Bergen). The chief objective of this revision was to implement proper XML support in the Guidelines, while ensuring that documents produced to earlier TEI specifications remained usable with the new version.
This version may be read online on the TEI website, and is also available in print: see the TEI Services page for details of how to purchase copies. You can also download the HTML version as a single archive for offline browsing; members may also download copies in PDF format.
Chapter 2 (the Gentle Introduction to XML) is available separately in XML, HTML, and PDF.
The Document Type Declaration"