Dyfyniad APA
Skogan, W. G., & Hartnett, S. M. (1997). Community policing, Chicago style. Oxford University Press.
Dyfyniad Arddull Chicago
Skogan, Wesley G., and Susan M. Hartnett. Community Policing, Chicago Style. New York ; London: Oxford University Press, 1997.
Dyfyniad MLA
Skogan, Wesley G., and Susan M. Hartnett. Community Policing, Chicago Style. Oxford University Press, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.