Cita APA (7a ed.)

Strang, J. (20). Heroin addiction and the British system. Routledge.

Cita Chicago Style (17a ed.)

Strang, John. Heroin Addiction and the British System. London [u.a.]: Routledge, 20.

Cita MLA (9a ed.)

Strang, John. Heroin Addiction and the British System. Routledge, 20.