Parrett, W. G. (2007). The sentinel CEO: Perspectives on security, risk, and leadership in a post-911 world. John Wiley & Sons.
استشهاد بنمط شيكاغوParrett, William G. The Sentinel CEO: Perspectives On Security, Risk, and Leadership in a Post-911 World. John Wiley & Sons, 2007.
MLA استشهادParrett, William G. The Sentinel CEO: Perspectives On Security, Risk, and Leadership in a Post-911 World. John Wiley & Sons, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.