APA (7th ed.) Citation

Brain, K., Parker, H., & Bottomley, T. (1998). Evolving crack cocaine careers. Research findings, 85, 1-4.

Chicago Style (17th ed.) Citation

Brain, Kevin, Howard Parker, and Tim Bottomley. "Evolving Crack Cocaine Careers." Research Findings 85 (1998): 1-4.

MLA (8th ed.) Citation

Brain, Kevin, et al. "Evolving Crack Cocaine Careers." Research Findings, 85, 1998, pp. 1-4.