APA (7th ed.) Citation

Walker, S., & Katz, C. M. (2018). The Police in America: An introduction (Ninth Edition.). McGraw-Hill Education.

Chicago Style (17th ed.) Citation

Walker, Samuel, and Charles M. Katz. The Police in America: An Introduction. Ninth Edition. New York, NY: McGraw-Hill Education, 2018.

MLA (9th ed.) Citation

Walker, Samuel, and Charles M. Katz. The Police in America: An Introduction. Ninth Edition. McGraw-Hill Education, 2018.