APA (7th ed.) Citation

United Kingdom. Foreign Office. Historical Section. (1920). Austrian Silesia. HMSO.

Chicago Style (17th ed.) Citation

United Kingdom. Foreign Office. Historical Section. Austrian Silesia. London: HMSO, 1920.

MLA (8th ed.) Citation

United Kingdom. Foreign Office. Historical Section. Austrian Silesia. HMSO, 1920.

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