APA (7th ed.) Citation

London County Council, Gater, G. H., & Hiorns, F. R. (1940). Trafalgar Square and neighbourhood: (the Parish of St. Martin-in-the-Fields, pt. III) being the twentieth volume of the survey of London. Published by the London County Council.

Chicago Style (17th ed.) Citation

London County Council, George Henry Gater, and Frederick R. Hiorns. Trafalgar Square and Neighbourhood: (the Parish of St. Martin-in-the-Fields, Pt. III) Being the Twentieth Volume of the Survey of London. London: Published by the London County Council, 1940.

MLA (9th ed.) Citation

London County Council, et al. Trafalgar Square and Neighbourhood: (the Parish of St. Martin-in-the-Fields, Pt. III) Being the Twentieth Volume of the Survey of London. Published by the London County Council, 1940.