APA Format
William C. Cunningham; . (1990). Private security trends 1970 to 2000 the hallcrest report II / . Boston : Butterwarth Heinemann
MLA Format
William C. Cunningham; . Private security trends 1970 to 2000 the hallcrest report II / . Boston : Butterwarth Heinemann, 1990
Chicago Format
William C. Cunningham; . Private security trends 1970 to 2000 the hallcrest report II / . Boston : Butterwarth Heinemann, 1990
Australian/Harvard Format
William C. Cunningham; . 1990. Private security trends 1970 to 2000 the hallcrest report II / . Butterwarth Heinemann Boston