Alston, C. G. (2003). How safe is safe enough?: Leadership, safety and risk management. Ashgate.
Chicago-Zitierstil (17. Ausg.)Alston, Colonel Greg. How Safe Is Safe Enough?: Leadership, Safety and Risk Management. Aldershot [u.a.]: Ashgate, 2003.
MLA-Zitierstil (9. Ausg.)Alston, Colonel Greg. How Safe Is Safe Enough?: Leadership, Safety and Risk Management. Ashgate, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.