Dyfyniad APA
Fay, J. (2006). Contemporary security management (2nd ed.). Elsevier/Butterworth-Heinemann.
Dyfyniad Arddull Chicago
Fay, John. Contemporary Security Management. 2nd ed. Amsterdam ; Boston: Elsevier/Butterworth-Heinemann, 2006.
Dyfyniad MLA
Fay, John. Contemporary Security Management. 2nd ed. Elsevier/Butterworth-Heinemann, 2006.
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