http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
legitimacy of comparisons in comparative urban studies
a theoretical position and an application to North African cities
School of Architecture and Urban Planning.
"Paper presented to the Comparative Urban Studies and Planning Program, School of Architecture and Urban Planning, University of California, Los Angeles, February 1974 (Revised April 1974)"