APA (7th ed.) Citation

Trautman, N. E. (1990). A study of law enforcement: A comprehensive study of the world's greatest, yet most difficult, profession. Thomas.

Chicago Style (17th ed.) Citation

Trautman, Neal E. A Study of Law Enforcement: A Comprehensive Study of the World's Greatest, yet Most Difficult, Profession. Springfield, Ill. [u.a.]: Thomas, 1990.

MLA (8th ed.) Citation

Trautman, Neal E. A Study of Law Enforcement: A Comprehensive Study of the World's Greatest, yet Most Difficult, Profession. Thomas, 1990.