APA (7th ed.) Citation

Lewis, A. B. (1900). The housing of the poor in London. [publisher not identified].

Chicago Style (17th ed.) Citation

Lewis, Alice B. The Housing of the Poor in London. [London?]: [publisher not identified], 1900.

MLA (9th ed.) Citation

Lewis, Alice B. The Housing of the Poor in London. [publisher not identified], 1900.