Denis, F. (1995). Management training of senior police officers: A survey of seven West-European countries / Frank Denis (Team Consult Belgium). Fachhochschule Villingen-Schwenningen Hochschule für Polizei.
Chicago-viite (17. p.)Denis, Frank. Management Training of Senior Police Officers: A Survey of Seven West-European Countries / Frank Denis (Team Consult Belgium). Villingen-Schwenningen: Fachhochschule Villingen-Schwenningen Hochschule für Polizei, 1995.
MLA-viite (8. p.)Denis, Frank. Management Training of Senior Police Officers: A Survey of Seven West-European Countries / Frank Denis (Team Consult Belgium). Fachhochschule Villingen-Schwenningen Hochschule für Polizei, 1995.
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