APA (7th ed.) Citation

Gran Bretaña. Foreign Office. Historical Section. (1920). The formation of the Portuguese colonial empire. H.M. Stationery Office.

Chicago Style (17th ed.) Citation

Gran Bretaña. Foreign Office. Historical Section. The Formation of the Portuguese Colonial Empire. London: H.M. Stationery Office, 1920.

MLA (9th ed.) Citation

Gran Bretaña. Foreign Office. Historical Section. The Formation of the Portuguese Colonial Empire. H.M. Stationery Office, 1920.

Warning: These citations may not always be 100% accurate.