Diciopedia do Século 21
Unknown author · Editorial Galaxia, S.A. · 2006
Wikipedia
{{cite book |title=Diciopedia do Século 21 |publisher=Editorial Galaxia, S.A. |year=2006 |isbn=9788482889429}}
Unknown author · Editorial Galaxia, S.A. · 2006
{{cite book |title=Diciopedia do Século 21 |publisher=Editorial Galaxia, S.A. |year=2006 |isbn=9788482889429}}