http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
The author of this solid and comprehensive work is Professor of Industry in the Wharton School of Finance and Commerce, University of Pennsylvania. His aim is "to interpret the earth in terms of its usefulness to humanity." The first part of the book—con- taining over six hundred pages—deals with the chief industries of the world as affected by geographical conditions. The second part—less than half as long—describes the leading trade routes. The point of view is North American, but the Old World receives due consideration.
Economic geography,Commercial geography,Địa lý kinh tế,Địa lý thương mại