http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Continuado por: Policy & practice of public human services [ISSN 1520-801X]
Historical abstracts. Part A, Modern history abstracts
Historical abstracts. Part B, Twentieth century abstracts
Universidade Federal de Pernambuco Centro de Ciências Sociais Aplicadas