Dyfyniad APA

Blyth, M. (2008). Risk and security management: Protecting people and sites worldwide. John Wiley & Sons.

Dyfyniad Arddull Chicago

Blyth, Michael. Risk and Security Management: Protecting People and Sites Worldwide. Hoboken, N.J.: John Wiley & Sons, 2008.

Dyfyniad MLA

Blyth, Michael. Risk and Security Management: Protecting People and Sites Worldwide. John Wiley & Sons, 2008.

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