http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
model of international relations in agriculture : report of the project group "Food for a Doubling World Population"
Hans Linnemann (project leader).. [et al.], with contributions by Rein J. Brolsma...[et. al]
Contributions to economic analysis ; ; 124