APA (7th ed.) Citation

Smith, D. J., & Gray, J. (1985). Police and people in London: The PSI report. Gower.

Chicago Style (17th ed.) Citation

Smith, David J., and Jeremy Gray. Police and People in London: The PSI Report. Aldershot, Hants, England u.a: Gower, 1985.

MLA (9th ed.) Citation

Smith, David J., and Jeremy Gray. Police and People in London: The PSI Report. Gower, 1985.