http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
with an English translation by H. St. J. Thackeray.
Volume 5, translated by H. St. J. Thackeray and Ralh Marcus has imprint: Cambridge, Harvard University Press; London, W. Heinemann; volume 6, revised, 1951, translated by Ralph Marcus, has imprint: Cambridge Mass., Harvard University Press.
TAMU set incomplete, volumes 1-3, 7- wanting.