http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
by Knud Jeppesen ; with an introduction by Edward J. Dent.
"This Dover edition, first published in 1970 and reprinted in 2005, is an unabridged republication, with corrections, of the second revised and enlarged edition originally published in 1946 by Oxford University Press"--T.p. verso.