http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
names approved by the United States Board on Geographic Names
3 volumes (xx, 1684 pages) : maps ; 28 cm.
"Stock number GAZGNMEXICOV1"--Cover, volume 1.
"Stock number GAZGNMEXICOV2"--Cover, volume 2.
"Stock number GAZGNMEXICOV3"--Cover, volume 3.