Bill Phillips. (2009). Locksmith and security professionals' exam study guide. New York: McGraw-Hill.
Chicago-стиль цитированияBill Phillips. Locksmith and Security Professionals' Exam Study Guide. New York: McGraw-Hill, 2009.
MLA-цитированиеBill Phillips. Locksmith and Security Professionals' Exam Study Guide. New York: McGraw-Hill, 2009.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.