http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
xiii pages, 1 ., 211 pages : illustrations plates, diagrams ; 23 cm.
"Slightly expanded material of lectures on 'The crust of the earth,' given under the auspices of the [Norman Wait Harris] foundation in May, 1937."--Pref.