Παραπομπή APA

German, A. C. D. (1962). Introduction to law enforcement. Charles C. Thomas.

Παραπομπή Chicago Style

German, A. C Day. Introduction to Law Enforcement. USA: Charles C. Thomas, 1962.

Παραπομπή MLA

German, A. C Day. Introduction to Law Enforcement. Charles C. Thomas, 1962.