Gaya APA

Parrett, W, G, P, W, G. (2007). The Sentinel CEO : perspectives on security, risk, and leadership in a post -9/11 world.-- . New Jersey: John Wiley & Sons.

Gaya MLA

Parrett, William, G., Parrett,, William, G.. "The Sentinel CEO : perspectives on security, risk, and leadership in a post -9/11 world.--". New Jersey: John Wiley & Sons, 2007. Buku.