Williamson, J. L. (1955). A survey of police services and problems in the Philippines. Institute of Public Administration, University of the Philippines.
Chicago-Zitierstil (17. Ausg.)Williamson, Jeter L. A Survey of Police Services and Problems in the Philippines. Manila: Institute of Public Administration, University of the Philippines, 1955.
MLA-Zitierstil (9. Ausg.)Williamson, Jeter L. A Survey of Police Services and Problems in the Philippines. Institute of Public Administration, University of the Philippines, 1955.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.