http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Route and distances to Oregon and California
with a description of watering-places, crossings, dangerous Indians, &c., &c
Microfilm. Ann Arbor, Mich., University Microfilms [n.d.] (American culture series, Reel 450.17)