APA (7th ed.) Citation

Wallace, E. (1969). When the gangs came to London (Revised ed. (reset).). Long.

Chicago Style (17th ed.) Citation

Wallace, Edgar. When the Gangs Came to London. Revised ed. (reset). London: Long, 1969.

MLA (8th ed.) Citation

Wallace, Edgar. When the Gangs Came to London. Revised ed. (reset). Long, 1969.