Grosskopf, E. W. (1986). The relationship between patrol activities of Cook County, Illinois, sheriff's police officers, and their recruit training. Univ. Microfilms Internat.
Chicago-Zitierstil (17. Ausg.)Grosskopf, Edmund W. The Relationship Between Patrol Activities of Cook County, Illinois, Sheriff's Police Officers, and Their Recruit Training. Ann Arbor, Mich: Univ. Microfilms Internat, 1986.
MLA-Zitierstil (8. Ausg.)Grosskopf, Edmund W. The Relationship Between Patrol Activities of Cook County, Illinois, Sheriff's Police Officers, and Their Recruit Training. Univ. Microfilms Internat, 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.