Diez, L. (1995). The use of call grading: How calls to the police are graded and resourced Police research series.
Chicago-Zitierstil (17. Ausg.)Diez, Lara. "The Use of Call Grading: How Calls to the Police Are Graded and Resourced." Police Research Series 1995.
MLA-Zitierstil (8. Ausg.)Diez, Lara. "The Use of Call Grading: How Calls to the Police Are Graded and Resourced." Police Research Series, 1995.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.