APA (7th ed.) Citation

Leonard, J. D., & Telford, H. D. (1940). Police Instruction (A Measurement of Its Effectiveness).

Chicago Style (17th ed.) Citation

Leonard, John D., and H. D. Telford. Police Instruction (A Measurement of Its Effectiveness). 1940.

MLA (9th ed.) Citation

Leonard, John D., and H. D. Telford. Police Instruction (A Measurement of Its Effectiveness). 1940.

Warning: These citations may not always be 100% accurate.