(19XX). Chief Constables' reports, England and Wales .. Chief Constables' reports, England and Wales ....
Chicago Style (17th ed.) Citation"Chief Constables' Reports, England and Wales .." Chief Constables' Reports, England and Wales ... 19XX.
MLA (9th ed.) Citation"Chief Constables' Reports, England and Wales .." Chief Constables' Reports, England and Wales ..., 19XX.
Warning: These citations may not always be 100% accurate.