http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
By Brian A. Crane and Henry S. Brown, 1991-
Kept up to date between editions with supplements.
Carswell, One Corporate Plaza, 2075 Kennedy Rd., Scarborough, Ont. M1T 3V4