http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
by Harvey S. Perloff, with Vera W. Dodds.
"Based on Regions, resources, and economic growth, by Harvey S. Perloff ... [and others] a study prepared for Resources for the Future, inc."
"Sources for tables and figures": pages 146-147.
Committee for Economic Development. Supplementary paper no. 17