APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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