http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
University of Bristol, School for Advanced Urban Studies
Historical abstracts. Part B, Twentieth century abstracts
Historical abstracts. Part A, Modern history abstracts
Universidade Estadual de Campinas Instituto de Economia
Fundação Oswaldo Cruz Instituto Aggeu Magalhães
Instituto Universitário de Pesquisas do Rio de Janeiro