http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
v. 1. Chapters 1-13 -- v. 2. Chapters 14-27.
Jerry J. Weygandt, Donald E. Kieso, Paul D. Kimmel.
Supplement available electronically via the World Wide Web at http://www.wiley.com/college/weygandt