APA (7e ed.) Bronvermelding
Howard, D., & Prince, K. (2011). Security 2020: Reduce security risks this decade. Wiley Pub..
Chicago (17e ed.) Bronvermelding
Howard, Doug, en Kevin Prince. Security 2020: Reduce Security Risks This Decade. Indianapolis, Ind.: Wiley Pub., 2011.
MLA (9e ed.) Bronvermelding
Howard, Doug, en Kevin Prince. Security 2020: Reduce Security Risks This Decade. Wiley Pub., 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.