APA (7th ed.) Citation

Twentieth Century Society (London, England). (1994). Twentieth century architecture. Twentieth Century Society.

Chicago Style (17th ed.) Citation

Twentieth Century Society (London, England). Twentieth Century Architecture. London: Twentieth Century Society, 1994.

MLA (8th ed.) Citation

Twentieth Century Society (London, England). Twentieth Century Architecture. Twentieth Century Society, 1994.

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