Cita APA (7a ed.)

Strang, J., & Gossup, M. (1994). Heroin addiction and drug policy: The British system. University Press.

Cita Chicago Style (17a ed.)

Strang, John, y Michael Gossup. Heroin Addiction and Drug Policy: The British System. Oxford [etc.]: University Press, 1994.

Cita MLA (9a ed.)

Strang, John, y Michael Gossup. Heroin Addiction and Drug Policy: The British System. University Press, 1994.