APA (7th ed.) Citation

United Kingdom. Foreign Office. Historical Section & Prothero, G. (1920). The Don and the Volga basins. HMSO.

Chicago Style (17th ed.) Citation

United Kingdom. Foreign Office. Historical Section and G.W Prothero. The Don and the Volga Basins. London: HMSO, 1920.

MLA (8th ed.) Citation

United Kingdom. Foreign Office. Historical Section and G.W Prothero. The Don and the Volga Basins. HMSO, 1920.