Schnabolk, C. (1983). Physical security: Practices and technology. Butterworths.
Chicago Style (17th ed.) CitationSchnabolk, Charles. Physical Security: Practices and Technology. Boston [u.a.]: Butterworths, 1983.
MLA (9th ed.) CitationSchnabolk, Charles. Physical Security: Practices and Technology. Butterworths, 1983.
Warning: These citations may not always be 100% accurate.