APA (7th ed.) Citation

Dudycha, G. J., & Berrien, F. (1955). Psychology for law enforcement officers. Thomas.

Chicago Style (17th ed.) Citation

Dudycha, George John, and F.K Berrien. Psychology for Law Enforcement Officers. Springfield, Ill: Thomas, 1955.

MLA (9th ed.) Citation

Dudycha, George John, and F.K Berrien. Psychology for Law Enforcement Officers. Thomas, 1955.