Cita APA (7a ed.)

Brain, K., Parker, H., & Bottomley, T. (1998). Evolving crack cocaine careers: New users, quitters and long term combination drug users in NW England. University of Manchester.

Cita Chicago Style (17a ed.)

Brain, Kevin, Howard Parker, y Tim Bottomley. Evolving Crack Cocaine Careers: New Users, Quitters and Long Term Combination Drug Users in NW England. Manchester: University of Manchester, 1998.

Cita MLA (8a ed.)

Brain, Kevin, et al. Evolving Crack Cocaine Careers: New Users, Quitters and Long Term Combination Drug Users in NW England. University of Manchester, 1998.