http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
110 pages, 1 : illustrations (maps) ; 22 cm.
by Peter Jordan; an introduction by Ernest Minor Patterson.
London edition (British-Continental syndicate ltd., 1943) by George Harrison and Peter Jordan, published under title: Central union.