Ford, R. E. (1977). Tips: Training and information for private security (2nd. ed.). Davis Pub. Co.
Cita Chicago Style (17a ed.)Ford, Robert E. Tips: Training and Information for Private Security. 2nd. ed. Santa Cruz, CA: Davis Pub. Co, 1977.
Cita MLA (8a ed.)Ford, Robert E. Tips: Training and Information for Private Security. 2nd. ed. Davis Pub. Co, 1977.
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