O'Block, R. L. (1981). Security and crime prevention. Mosby.
Chicago Style (17th ed.) CitationO'Block, Robert L. Security and Crime Prevention. St. Louis: Mosby, 1981.
MLA (9th ed.) CitationO'Block, Robert L. Security and Crime Prevention. Mosby, 1981.
Warning: These citations may not always be 100% accurate.