APA (7th ed.) Citation

West, D. J., West, D. J., & DeVilliers, B. (1992). Male prostitution: Gay sex services in London (1. publ.). Duckworth.

Chicago Style (17th ed.) Citation

West, D. J., Donald J. West, and Buz DeVilliers. Male Prostitution: Gay Sex Services in London. 1. publ. London: Duckworth, 1992.

MLA (8th ed.) Citation

West, D. J., et al. Male Prostitution: Gay Sex Services in London. 1. publ. Duckworth, 1992.