Cita APA (7a ed.)

Mitchell, R. J., & Leys, M. D. R. (1968). A history of London life. Penguin books.

Cita Chicago Style (17a ed.)

Mitchell, R. J., y M. D. R. Leys. A History of London Life. Harmondsworth: Penguin books, 1968.

Cita MLA (9a ed.)

Mitchell, R. J., y M. D. R. Leys. A History of London Life. Penguin books, 1968.