APA (7th ed.) Citation

National Trust (Great Britain). (1973). Properties of the National Trust, 1973. National Trust.

Chicago Style (17th ed.) Citation

National Trust (Great Britain). Properties of the National Trust, 1973. London: National Trust, 1973.

MLA (8th ed.) Citation

National Trust (Great Britain). Properties of the National Trust, 1973. National Trust, 1973.

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