APA (7th ed.) Citation

Silvester-Carr, D., & Butler, A. (1991). London. Collins & Brown.

Chicago Style (17th ed.) Citation

Silvester-Carr, Denise, and Andrew Butler. London. London: Collins & Brown, 1991.

MLA (9th ed.) Citation

Silvester-Carr, Denise, and Andrew Butler. London. Collins & Brown, 1991.