APA (7e ed.) Bronvermelding
Barker, T. Outlaw Motorcycle Gangs as Organized Crime Groups. Springer.
Chicago (17e ed.) Bronvermelding
Barker, Thomas. Outlaw Motorcycle Gangs as Organized Crime Groups. Cham, Suiza: Springer.
MLA (9e ed.) Bronvermelding
Barker, Thomas. Outlaw Motorcycle Gangs as Organized Crime Groups. Springer.
Let op: Deze citaties zijn niet altijd 100% accuraat.