APA (7th ed.) Citation

Smith, B. (1960). Police systems in the United States (2nd rev. ed. (4th print).). Harper & Row.

Chicago Style (17th ed.) Citation

Smith, Bruce. Police Systems in the United States. 2nd rev. ed. (4th print). New York: Harper & Row, 1960.

MLA (9th ed.) Citation

Smith, Bruce. Police Systems in the United States. 2nd rev. ed. (4th print). Harper & Row, 1960.