Hess, K. M., & Wrobleski, H. M. (1982). Introduction to private security. West Pub. Co.
Cita Chicago Style (17a ed.)Hess, Kären M., y Henry M. Wrobleski. Introduction to Private Security. St. Paul: West Pub. Co, 1982.
Cita MLA (9a ed.)Hess, Kären M., y Henry M. Wrobleski. Introduction to Private Security. West Pub. Co, 1982.
Precaución: Estas citas no son 100% exactas.